Extensions

To determine the patent term adjustments (PTA), patent term extensions (PTE), continuation/divisional applications, related family members, and the projected expiration date for US patent 11,516,643, a direct search of the USPTO database is required.

Based on the patent text itself and general USPTO rules:

Patent Term Adjustments (PTA):
The USPTO automatically calculates Patent Term Adjustment (PTA) to compensate for certain delays caused by the USPTO during the patent prosecution process. This adjustment is added to the 20-year term of the patent. The official PTA calculation is included in the Issue Notification Letter and is indicated on the patent. Without access to the official USPTO patent record for US11516643 (such as the issue notification or Patent Center details), the specific PTA amount cannot be determined.

Patent Term Extensions (PTE):
Patent Term Extension (PTE) is available for patents claiming products (like human drugs, medical devices, food additives, or animal drugs) that require regulatory approval before commercial marketing or use. PTE aims to restore some of the patent term lost during this regulatory review period, but generally cannot exceed five years and the total patent term including restoration cannot exceed 14 years following marketing approval. Given the subject matter of US11516643, which is related to software for automated message responses in computerized devices, it is highly unlikely to be eligible for a Patent Term Extension under 35 U.S.C. § 156, as it does not appear to cover a product requiring premarket government approval from a regulatory agency like the FDA.

Continuation Applications, Divisional Applications, and Related Family Members:
US Patent 11,516,643 lists several related applications under "CROSS REFERENCE TO RELATED APPLICATIONS" in its description:

• This application is a continuation-in-part of U.S. patent application Ser. No. 15/950,887, filed Apr. 11, 2018, now U.S. Pat. No. 10,841,248.
• Application Ser. No. 15/950,887 was a continuation-in-part of U.S. patent application Ser. No. 15/462,874, filed Mar. 19, 2017, now U.S. Pat. No. 9,979,826.
• Application Ser. No. 15/462,874 was a continuation-in-part of U.S. patent application Ser. No. 15/249,372, filed Aug. 27, 2016, now U.S. Pat. No. 9,602,988.
• Application Ser. No. 15/249,372 was a continuation-in-part of application Ser. No. 14/273,748, filed May 9, 2014, now U.S. Pat. No. 9,432,499.
• Application Ser. No. 14/273,748 claimed the priority benefit of U.S. provisional patent 61/825,017, filed May 18, 2013.

Therefore, US11516643 is part of a patent family that includes multiple continuation-in-part applications. The earliest priority date for US11516643 is May 18, 2013, from provisional patent 61/825,017.

Projected Expiration Date:
For utility patents filed on or after June 8, 1995, the patent term generally expires 20 years from the date on which the application for the patent was filed, or if the application claims benefit of an earlier filed application under 35 U.S.C. 120, 121, 365(c), or 386(c), then 20 years from the filing date of the earliest such application. This 20-year term can be adjusted by any Patent Term Adjustments (PTA).

Given that US11516643 is a utility patent (indicated by the lack of a "D" or "PP" prefix in its number) and claims priority back to a provisional application filed on May 18, 2013, the base patent term would typically be 20 years from this earliest priority date.

• Earliest Priority Date: May 18, 2013
• Base Expiration Date (20 years from priority): May 18, 2033

However, the Google Patents information for US11516643 lists an "Anticipated expiration" date of 2034-05-09. This discrepancy suggests that Patent Term Adjustment (PTA) has been applied to the patent. The difference between May 18, 2033, and May 9, 2034, is approximately 11 months and 21 days. This indicates a PTA of approximately 356 days. The official PTA would be determined by the USPTO at the time of issuance and is typically indicated on the patent itself or in its prosecution history.

Therefore, the projected expiration date, including the anticipated PTA, is May 9, 2034.