Extensions

The USPTO provides resources like Patent Center and Patent Public Search for patent information. To accurately detail patent term adjustments (PTA), patent term extensions (PTE), continuation/divisional applications, and the projected expiration date for US patent 10,628,820, a direct search of the USPTO's Patent Center or Public Search databases is required. While the provided search results offer general information about PTA and PTE, they do not contain specific calculations or details for patent 10,628,820.

Based on general patent law principles:

• Patent Term Adjustment (PTA): PTA compensates patent applicants for certain administrative delays by the USPTO during prosecution of a utility or plant patent application. This can add days to the standard 20-year patent term, calculated from the non-provisional filing date. Delays can be related to the USPTO's failure to issue an office action within 14 months, respond to a reply or appeal within four months, act on an application within four months after a PTAB or federal court decision, or issue a patent within four months of issue fee payment. It also addresses delays if a patent fails to issue within three years from the filing date. Applicant delays, however, can reduce or negate PTA.
• Patent Term Extension (PTE): PTE is available for patents claiming certain human drug products, medical device products, animal drug products, veterinary biological products, and food or color additive products. It aims to restore patent term lost due to the lengthy premarket government approval process from regulatory agencies like the FDA. Given the nature of US10628820 ("Multi-function electronic payment device"), it is unlikely to be eligible for PTE, as it does not appear to relate to products requiring regulatory approval under 35 U.S.C. § 156.
• Continuation and Divisional Applications: These are related applications that claim priority to an earlier-filed "parent" application. A continuation application is filed during the pendency of the parent application and claims the same invention. A divisional application is filed when the USPTO requires restriction between two or more independent and distinct inventions claimed in a single application. The provided information lists "Other versions" as US20190197520A1 on Google Patents. This typically indicates a published application that might be a continuation or divisional of an earlier application, but without direct USPTO records, the exact relationship isn't explicitly defined beyond being a family member. The patent states it is a Continuation application of U.S. patent application Ser. No. 15/250,698 (U.S. Pat. No. 10,013,693), which itself was a continuation of U.S. patent application Ser. No. 14/680,946 (U.S. Pat. No. 9,430,765), and U.S. patent application Ser. No. 14/217,261 (U.S. Pat. No. 9,022,286), and claims benefit of U.S. Provisional Patent No. 61/794,891.
• Related Family Members: The Google Patents entry lists several priority dates and related applications, indicating a family of patents and applications. Specifically, US10628820B2 has priority to US16/025,829, US16/854,829 (which resulted in US11328286B2), US17/716,942 (which resulted in US12141785B2), US17/741,260 (which resulted in US12056684B2), US18/796,235 (which resulted in US20240394687A1), and US18/945,333 (which resulted in US20250069060A1). These show a clear lineage and ongoing prosecution of related inventions.
• Projected Expiration Date: The Google Patents page for US10628820 explicitly states an "Anticipated expiration" date of 2034-03-17. This date accounts for the standard 20-year term from the earliest non-provisional filing date (March 17, 2014, for U.S. patent application Ser. No. 14/217,261) and any applicable Patent Term Adjustment (PTA).

To obtain the precise PTA calculation, details on continuation/divisional applications beyond what is publicly listed on Google Patents, and the definitive expiration date, a direct search in USPTO Patent Center for patent number 10,628,820 would be necessary. Such a search would provide access to the patent's file wrapper, which contains the official PTA calculations.