Extensions

To provide a comprehensive analysis of US patent 11664926, I'll access the USPTO's Patent Center and Patent Public Search tools. However, as a large language model, I cannot directly interact with these live databases. My previous search results indicate that the USPTO does not calculate expiration dates but provides a calculator.

Based on the provided patent text and general patent law, here's what can be inferred and what would typically be sought from the USPTO databases:

For US Patent 11664926:

• Patent Term Adjustments (PTA): Patent Term Adjustments can be granted to compensate for delays caused by the USPTO during the patent prosecution process. These delays can include failing to issue a first office action within 14 months, failing to respond to an applicant's reply within four months, failing to issue a patent within four months of the issue fee payment, or failing to issue a patent within three years of the filing date. The exact amount of PTA would be indicated on the issue notification and the patent front page. To get the precise PTA, one would need to review the patent grant or the Patent Center file history.

• Patent Term Extensions (PTE): Patent Term Extensions are generally granted for delays related to regulatory review, such as by the FDA, or for certain appeals, interferences, or secrecy orders, though the primary context is often FDA approval. Since this patent appears to relate to wireless communication technology, it is less likely to have a PTE based on FDA approval. Any PTE would also be explicitly noted in the patent's record.

• Continuation Applications: A continuation application is filed to pursue additional claims to an invention disclosed in an earlier "parent" application that has not yet been issued or abandoned, using the same specification but different claims. It benefits from the priority date of the parent application. The patent text lists "US17/157,978" as an application number and "US20210152275A1" as another version. "US20210152275A1" is a patent application publication. To determine if US11664926 is a continuation of US17/157,978 (or if 17/157,978 is a continuation of something else), or if it has any continuations itself, one would typically examine the "Cross-Reference To Related Applications" section of the patent or its file wrapper in Patent Center.

• Divisional Applications: A divisional application contains subject matter from a previously filed "parent" application but is filed due to a "lack of unity of invention," meaning the parent application described more than one invention and the applicant was required to split it. Like continuations, divisionals retain the parent's filing date. The patent text does not explicitly mention any divisional applications. This information would be found in the "Cross-Reference To Related Applications" section or by reviewing the application family in Patent Center.

• Related Family Members: The patent text lists "US20210152275A1" as another version, which is a published patent application. This indicates a related family member. Further related family members (e.g., continuations-in-part, foreign equivalents, etc.) would be identified by searching patent family databases or the "Related U.S. Application Data" section on the patent's front page.

• Projected Expiration Date:

  • For U.S. utility patents filed on or after June 8, 1995, the patent term generally expires 20 years from the earliest filing date of the application, plus any Patent Term Adjustments (PTA) or Patent Term Extensions (PTE).
  • The earliest priority date for US11664926 is listed as December 21, 2016.
  • The filing date of the application leading to US11664926 is January 25, 2021.
  • The patent text states "Active, expires 2038-01-27" and "Adjusted expiration 2038-01-27".
  • Given the earliest priority date of 2016-12-21, a nominal 20-year term would end on 2036-12-21. The adjusted expiration date of 2038-01-27 suggests there has been a Patent Term Adjustment (PTA) of approximately 1 year, 1 month, and 6 days.

To precisely determine continuation/divisional status and official PTA/PTE, access to USPTO's Patent Center (patentcenter.uspto.gov) or Patent Public Search (ppubs.uspto.gov) would be necessary to review the full file history and any certificates of correction or PTA calculations.