Extensions

Here's a detailed analysis of US patent 8810803, including its patent term adjustments, extensions, and related applications:

Patent Term Adjustments (PTA):
US patent 8810803 has an "Adjusted expiration" date of November 17, 2028. Utility patents generally have a term of 20 years from their earliest effective filing date. The earliest priority date for US8810803 is November 12, 2007, derived from U.S. Provisional Patent Application Ser. No. 60/987,315. A 20-year term from November 12, 2007, would typically result in an expiration date of November 12, 2027. The difference between the adjusted expiration date (November 17, 2028) and the base 20-year term expiration (November 12, 2027) indicates a Patent Term Adjustment of approximately 1 year and 5 days. This adjustment is granted to compensate for certain administrative delays by the USPTO during patent prosecution.

Patent Term Extensions (PTE):
There is no indication that US patent 8810803 has received a Patent Term Extension (PTE). PTEs are typically available for patents claiming products (such as human drugs, medical devices, food additives, or color additives) that require regulatory approval prior to commercial marketing. As US8810803 is titled "Lens system," it does not fall into these categories, making it ineligible for PTE.

Continuation Applications:
US patent 8810803 has a related child application that is a continuation:

• US14/458,566 (which issued as US9229107B2, titled "Lens system") was filed on August 13, 2014, and claims priority from the same November 12, 2007 date. This is explicitly listed as a "Continuation" within the patent's family information.

Divisional Applications:
US patent 8810803 (application number US13/448,321) is a divisional application of:

• U.S. application Ser. No. 12/269,849 (which issued as US8159682B2, titled "Lens system"), filed on November 12, 2008.

Related Family Members:
The patent family of US8810803 is primarily linked through priority claims stemming from the provisional application. The key members include:

• US Provisional Patent Application Ser. No. 60/987,315: Filed on November 12, 2007 (the earliest priority date).
• US12/269,849 (US8159682B2): The parent application, filed November 12, 2008, and claiming priority to the 2007 provisional.
• US13/448,321 (US8810803B2): The current patent, filed April 16, 2012, as a divisional of US12/269,849, and claiming priority to the 2007 provisional.
• US14/458,566 (US9229107B2): A continuation application filed August 13, 2014, also claiming priority to the 2007 provisional.

Projected Expiration Date:
The projected expiration date for US patent 8810803 is November 17, 2028. This date reflects the standard 20-year patent term from its earliest effective filing date of November 12, 2007, plus any Patent Term Adjustment (PTA) applied to the patent.