Extensions

I will search the USPTO Patent Center for US Patent 9854402 to obtain detailed information regarding patent term adjustments, extensions, continuation/divisional applications, related family members, and the projected expiration date.

Given that the current date is June 1, 2026, and the patent's anticipated expiration date on Google Patents is April 4, 2025 (based on the priority date of April 4, 2005, and a standard 20-year term), it is highly likely the patent has already expired. However, I will still look for any adjustments or extensions.

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US Patent 9854402: Term and Related Applications Analysis

1. Patent Term Adjustments (PTA)

Patent Term Adjustment (PTA) can extend the term of a U.S. patent to compensate for certain delays caused by the United States Patent and Trademark Office (USPTO) during the prosecution of a utility or plant patent application. These delays are typically categorized as "A," "B," and "C" delays.

• A-delays: Occur if the USPTO fails to issue a first Official Action or notice of allowance within 14 months of filing, or fails to act within four months of an applicant's response to an Official Action or within four months of payment of the issue fee.
• B-delays: Occur if the USPTO fails to issue a patent within three years of the actual filing date of the application.
• C-delays: Involve delays due to interference proceedings, secrecy orders, or successful appeals.

The Google Patents information for US9854402 does not explicitly state any Patent Term Adjustment awarded. To determine the exact PTA, if any, for US9854402, one would typically need to review the "Issue Notification" letter in the patent's file history on the USPTO Patent Center. This letter includes the PTA calculation.

2. Patent Term Extensions (PTE)

Patent Term Extensions (PTE) are typically granted under 35 U.S.C. § 156 for patents on certain human drugs, food or color additives, medical devices, animal drugs, and veterinary biological products to restore patent life lost due to mandatory premarket regulatory review.

Given the nature of US9854402, which relates to wireless device location sharing, it is highly unlikely to have been eligible for a Patent Term Extension under 35 U.S.C. § 156, as it does not appear to cover products subject to premarket government approval by agencies like the FDA.

3. Continuation and Divisional Applications

• Continuation Application: A continuation application is a new application for an invention disclosed in a prior, co-pending non-provisional application, where the disclosure does not introduce new matter.
• Divisional Application: A divisional application is filed when an initial patent application contains claims to more than one invention. The applicant may be required to restrict the claims to one invention, and then can file divisional applications for the other inventions.

The Google Patents page for US9854402 (Publication Number US9854402B1) lists the Application number as US15/418,531 and the Filing date as 2017-01-27. It also lists a "Priority date" of 2005-04-04. This indicates that US9854402 (or its underlying application US15/418,531) claims priority to an earlier filed application. The presence of a priority date significantly earlier than the filing date suggests that this patent may be a continuation or divisional of an earlier application, but without further information from the USPTO database, the exact nature of the relationship (e.g., continuation, divisional, or continuation-in-part) and the specific parent application cannot be definitively determined from the provided text.

4. Related Family Members

"Family members" generally refer to patents and applications that share a common priority claim. The Google Patents page explicitly lists the "Authority" as US and the "Priority date" as 2005-04-04. The "Application number" is US15/418,531, and the "Publication number" is US9854402B1. To identify all related family members, a comprehensive search through a patent database using the priority date and application number would be necessary. Without direct access to such a search for this specific patent, I cannot provide a complete list of related family members.

5. Projected Expiration Date

The standard term for a U.S. utility patent filed on or after June 8, 1995, is 20 years from its earliest filing date, including any priority claims.

• Priority Date: 2005-04-04
• Standard 20-year term expiration: 20 years from 2005-04-04 = 2025-04-04

The Google Patents page itself lists "Anticipated expiration: 2025-04-04" and "Status: Expired - Fee Related". This indicates that the patent has likely expired as of April 4, 2025, due to unpaid maintenance fees, or simply because its full statutory term, accounting for its earliest priority date, has run. Any PTA would add to this 20-year term. However, the "Expired - Fee Related" status implies that even if PTA was awarded, the patent's enforceability ceased due to failure to pay maintenance fees.

Summary:

As of June 1, 2026, US Patent 9854402 is likely expired, with the anticipated expiration date due to its priority date being April 4, 2025. While PTA may have been applied, the "Expired - Fee Related" status suggests it did not prevent the lapse of the patent. The patent's filing history, specifically its priority date, suggests it is related to an earlier application, but the specific details of any continuation or divisional applications and other family members would require a direct USPTO database search.