Obviousness

Obviousness Analysis of US Patent 12,377,343

An analysis of US patent 12,377,343 in light of publicly available prior art suggests that its claims may be obvious under 35 U.S.C. § 103 to a person having ordinary skill in the art (POSITA) of puzzle accessories and game board design. The core concepts of the patent—a puzzle board with integrated drawers, a surrounding border, and a rotating base—are all well-established features in the field.

The analysis below combines references that predate the patent's priority date of September 26, 2021. These references include existing products, DIY guides, and other patents that disclose the key elements of the claimed invention. A POSITA would have been motivated to combine these known elements to achieve the predictable result of a more convenient, organized, and user-friendly puzzle platform.

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Analysis of Independent Claim 1

Claim 1 describes a puzzle platform where the puzzle board and its reinforcing assembly are a single, integral piece. It features a detachable upper part that connects via hooks and holes, with the assembly providing space for drawers.

Prior Art Combination:

• US Patent 4,479,651 (LaFleur): This patent discloses a "jig-saw puzzle work board" with a recessed work surface and a frame, essentially teaching the concept of a puzzle board with a border to contain pieces.
• DIY Puzzle Board with Drawers (as described by Thrift Diving): Widely available online tutorials, such as one published by Thrift Diving in March 2021, detail the construction of puzzle boards with integrated sliding drawers underneath the main work surface. These guides show how to build a reinforcing structure that doubles as the housing for the drawers.
• Common Manufacturing Principles: The concept of manufacturing a multi-featured plastic part as a single, injection-molded piece to reduce assembly costs and increase strength is a fundamental principle in plastics engineering.

Motivation to Combine and Reasoning:

A POSITA, familiar with puzzle boards like LaFleur's and the DIY-style boards with integrated drawers, would find it obvious to combine these concepts. The primary motivation would be to create a more robust and commercially viable product.

1. Integrating the Board and Reinforcement: While DIY guides show the assembly of a board and its drawer-supporting understructure from separate pieces of wood or MDF, a POSITA in a commercial manufacturing context would naturally turn to injection molding for mass production. Integrating the puzzle plate and the reinforcing walls into a single molded part (one-piece structure) is a standard method to enhance structural integrity and simplify manufacturing, making the final product more durable and less expensive to produce. This is a predictable design choice, not an inventive leap.

2. Detachable Border: The use of a detachable border (the upper part) is a known convenience, allowing for easier storage or framing of a completed puzzle. The specific mechanism of fastening hooks engaging with fastening holes is a common and elementary mechanical fastening method. A designer seeking a simple, tool-free way to attach and detach a border would find this solution to be a routine and obvious choice.

Therefore, combining a known puzzle board with a border, an integrated drawer system, and standard plastic manufacturing techniques would render the invention described in Claim 1 obvious.

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Analysis of Independent Claim 16

Claim 16 focuses on the drawer retention mechanism, specifically a limiting bar on the assembly that mates with a limiting groove on the drawer, and drawer holders with a flexible bending portion.

Prior Art Combination:

• General Furniture and Cabinet Design: The use of stops, guides, and retention mechanisms to control the movement of drawers is a foundational concept in furniture and storage design. Simple limiting features, such as a protuberance (a "bar") on a cabinet frame engaging a channel ("groove") on a drawer to prevent it from being pulled out completely, are ubiquitous.
• Plastic Snap-Fit and Retention Features: In the field of plastic part design, flexible tabs or "bending portions" are commonly used as simple, low-cost retention features. These are often used as "drawer holders" in small plastic storage units to provide a slight resistance or a "click" to hold drawers in place.

Motivation to Combine and Reasoning:

A POSITA tasked with designing the puzzle platform's drawers would need a way to prevent them from sliding out unintentionally and to hold them securely when closed. The motivation is purely functional and pragmatic.

1. Preventing Drawer Removal: Incorporating a limiting bar and groove is a standard, textbook solution to prevent accidental drawer removal. This is not a unique or non-obvious solution but rather one of the most common methods for this purpose.

2. Securing Drawers: The concept of a flexible bending portion acting as a drawer holder is a direct application of common plastic design principles. To create a simple, molded-in feature that provides a slight detent or holding force on the puzzle drawers, a POSITA would find it obvious to use a flexible plastic tab. This avoids the need for additional hardware like magnets or latches, aligning with the goal of cost-effective, integrated design.

The mechanisms described in Claim 16 are common, well-known solutions to the basic functional requirements of drawer systems. Their application to a puzzle board is a predictable use of existing art, rendering the claim obvious.

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Analysis of Independent Claim 23

Claim 23 describes the puzzle platform with an attached rotating assembly. The key feature is the specific attachment method: a coupling portion that integrally extends from the puzzle board and includes a coupling hole for a screw to secure the rotating assembly.

Prior Art Combination:

• Rotating Puzzle Boards (e.g., "Lazy Susan" style boards): Numerous commercially available puzzle boards and tables feature a rotating mechanism, often a "Lazy Susan," to allow users to spin the board. These products establish the desirability and commonality of a rotating feature.
• US Patent 12,059,631 (Che): This patent, from one of the same inventors and part of the same patent family, describes a rotating assembly for a movable puzzle platform, demonstrating prior art in the specific field of rotating puzzle accessories.
• Standard Mechanical Attachment Methods: Attaching a component (like a rotating base) to a larger structure (like the puzzle board assembly) using screws is a fundamental mechanical practice. When designing an injection-molded part, it is standard practice to integrate mounting points, such as a reinforced boss or coupling portion with a hole, directly into the mold.

Motivation to Combine and Reasoning:

A POSITA seeking to add a rotating function to the puzzle platform would naturally look at existing rotating puzzle boards for inspiration. The motivation is to enhance user convenience by allowing 360-degree access to the puzzle without the user having to move.

1. Adding Rotation: The idea of making a puzzle board rotatable is not new. A POSITA would readily consider adding a rotating base to the one-piece board-and-reinforcement structure.

2. Integrated Attachment Point: Given that the board and reinforcing assembly are designed as a single molded part, the most efficient and robust way to attach a rotating assembly is to include the attachment point in the mold itself. Creating an integrally extending coupling portion with a coupling hole is the standard, obvious way to prepare a molded plastic part for screw-based attachment. It is a predictable implementation detail, not an inventive step, driven by the desire for a secure connection and manufacturing efficiency.

Combining the known concept of a rotating puzzle board with standard, integrated mounting features common to plastic part design would render the invention described in Claim 23 obvious.