Extensions

For US Patent 9804819, here's a detailed breakdown of its patent term and related applications:

1. Patent Term Adjustment (PTA)
Patent Term Adjustment (PTA) is granted to compensate for certain delays caused by the USPTO during the patent examination process. The provided patent document itself states an "Anticipated expiration" date of December 1, 2036. This date is exactly 20 years from the filing date of December 1, 2016, suggesting that as of the publication date, no PTA was applied or the PTA resulted in no extension beyond the standard 20-year term. However, the official PTA calculation is included in the Issue Notification Letter and is the official notification from the USPTO. It is determined by a computer program at the time of issuance and displayed on the patent. To confirm any specific PTA amount, one would typically need to review the patent's issue notification or the USPTO's Patent Center (Public PAIR).

2. Patent Term Extension (PTE)
Patent Term Extension (PTE) is a separate mechanism primarily for patents claiming certain human drug products, medical devices, food additives, animal drugs, and veterinary biological products, to recover time lost due to regulatory review before commercial marketing or use. This patent, US9804819, relates to a "Receiving apparatus and control method" for an audio device, not a regulated product like a drug or medical device. Therefore, it is highly unlikely to be eligible for PTE. Eligibility requirements for PTE include the patent claiming a product, a method of using a product, or a method of manufacturing, and the product being subject to a regulatory review period.

3. Continuation Applications, Divisional Applications, and Related Family Members

• Continuation/Divisional Applications: The term of a patent granted on a continuation or divisional application filed on or after June 8, 1995, ends twenty years from the filing date of the earliest application for which a benefit is claimed. US9804819's filing date is December 1, 2016, and its priority date is December 7, 2015, from Japanese Patent Application No. 2015-238210. While it claims priority to a foreign application, the patent text does not explicitly list any US continuation, continuation-in-part, or divisional applications that claim benefit from the US application filing date (US15/366,261).
• Related Family Members: The patent states that it claims priority to Japanese Patent Application No. 2015-238210, filed on December 7, 2015. It also lists US20170161013A1 as an "Other version" and JP6597251B2 as a "Country Status" link, indicating they are part of the same patent family.
  • JP2015238210A / JP6597251B2: This is the Japanese priority application and its granted patent equivalent, respectively.
  • US20170161013A1: This is the US patent application publication for US9804819B2.

4. Projected Expiration Date
For US utility patents filed on or after June 8, 1995, the patent term is generally 20 years from the filing date of the earliest U.S. non-provisional or PCT application to which priority is claimed.

• Earliest U.S. Filing Date: December 1, 2016 (Application number US15/366,261)
• Standard 20-year Term Expiration: December 1, 2016 + 20 years = December 1, 2036.

The patent itself lists an "Anticipated expiration" date of December 1, 2036. This aligns with the standard 20-year term from its filing date, assuming no patent term adjustment was granted or any granted adjustment did not extend it beyond this date. There is no indication of a terminal disclaimer, which could shorten the patent term.