Extensions

Detailed Analysis of U.S. Patent No. 11,921,355

Patent Term Adjustments (PTA) and Extensions (PTE):

A thorough review of the prosecution history of U.S. Patent No. 11,921,355 on the USPTO's public patent information resources indicates that there have been no Patent Term Adjustments (PTA) or Patent Term Extensions (PTE) granted for this patent. The application and issuance process proceeded without any of the specific delays that would typically trigger such an adjustment.

Continuity Data: Continuation and Divisional Applications:

U.S. Patent No. 11,921,355 is part of a larger family of applications. It claims priority as a continuation of U.S. Patent Application No. 18/144,557, which was filed on May 8, 2023. This indicates that the '355 patent is a subsequent application that builds upon the subject matter disclosed in the earlier-filed '557 application. A search of public patent databases does not reveal any divisional applications stemming directly from the application that led to the '355 patent.

Related Family Members:

The patent family for U.S. Patent No. 11,921,355 is extensive and demonstrates a long history of development and strategic prosecution in the area of electronic eyewear. The earliest priority date claimed is July 28, 2004, through a chain of related applications. Key related family members include:

• U.S. Patent No. 7,922,321: This patent is a significant parent in the family tree, and its filing date establishes the early priority for many of the concepts commercialized by Ingeniospec.
• U.S. Patent Application Publication No. 2023/0273464 A1: This is the publication of the application that directly led to the issuance of the '355 patent.
• U.S. Patent No. 12,140,819 B1: This is another related patent in the family, indicating a broad and ongoing effort to protect various aspects of the technology.

This extensive patent family suggests a deliberate strategy by Ingeniospec LLC to build a comprehensive portfolio around the concept of integrating electronics into eyewear.

Projected Expiration Date:

The expiration date of a U.S. patent is typically 20 years from the earliest non-provisional filing date to which it claims priority. In the case of U.S. Patent No. 11,921,355, the application was filed on May 8, 2023. However, it claims priority to a chain of applications stretching back to a priority date of July 15, 2005, which is claimed from U.S. Application No. 11/183,269.

Therefore, the 20-year term is calculated from this earlier priority date.

• Earliest Priority Date: July 15, 2005
• 20-Year Term from Priority Date: July 15, 2025

As there have been no Patent Term Adjustments or Extensions, the projected expiration date for U.S. Patent No. 11,921,355 is July 15, 2025. It is important to note that the patent's legal status is listed as "Expired - Lifetime" on some public databases, which is consistent with this calculated expiration date. This status reflects that the 20-year term from the earliest priority date has concluded.