Extensions

To determine the precise patent term adjustments (PTA), patent term extensions (PTE), continuation/divisional applications, and the definitive projected expiration date for US patent 8253180, direct access to the patent's official file history within the USPTO's Patent Center or Patent Public Search database would be necessary. The Google Patents page provides general information and related applications but does not typically detail specific PTA/PTE calculations or explicitly list all continuation/divisional relationships in a granular manner required for precise term determination.

Based on the available information:

Patent Term Adjustments (PTA):
The USPTO calculates PTA to compensate for certain administrative delays during patent prosecution. This calculation is typically made at the time the patent issues and is included in the Issue Notification Letter. The provided patent text and Google Patents page for US8253180 do not explicitly state any PTA applied to this specific patent. To find the exact PTA, one would need to consult the official USPTO file wrapper for patent 8253180.

Patent Term Extensions (PTE):
PTE is available for patents on certain products (e.g., human drugs, medical devices) that require premarket regulatory approval, to restore time lost during the approval process. There is no indication from the patent's title, abstract, or classifications that US8253180 pertains to such a product eligible for PTE. Therefore, it is unlikely to have a PTE. The provided information does not mention any PTE for this patent.

Continuation Applications, Divisional Applications, and Related Family Members:
The Google Patents page for US8253180 lists "Other versions," which includes US20110147857A1. [cite: The full patent text confirms this. ] Under "RELATED APPLICATIONS" in the description, it states that this application is a Divisional of U.S. patent application Ser. No. 12/505,799, filed on Jul. 20, 2009 (which became U.S. Pat. No. 7,923,764). [cite: The full patent text confirms this. ] That application, in turn, is a Divisional of U.S. patent application Ser. No. 11/491,260, filed on Jul. 24, 2006 (now U.S. Pat. No. 7,579,227), claiming priority of Japanese Patent Application No. 2005-227457, filed on Aug. 5, 2005. [cite: The full patent text confirms this. ] These indicate a chain of divisional applications.

• Parent Application (direct): U.S. patent application Ser. No. 12/505,799 (now U.S. Pat. No. 7,923,764) [cite: The full patent text confirms this. ]
• Grandparent Application: U.S. patent application Ser. No. 11/491,260 (now U.S. Pat. No. 7,579,227) [cite: The full patent text confirms this. ]
• Priority Application: Japanese Patent Application No. 2005-227457, filed on Aug. 5, 2005. [cite: The full patent text confirms this. ]

The current patent, US8253180, is thus a divisional application. [cite: The full patent text confirms this. ]

Projected Expiration Date:
For utility patents filed on or after June 8, 1995, the patent term generally expires 20 years from the earliest effective filing date of the patent application, including any priority claims to earlier applications.

The earliest priority date for US8253180 is August 5, 2005 (Japanese Patent Application No. 2005-227457). [cite: The full patent text confirms this. ]

Therefore, the base 20-year term would typically run from August 5, 2005.
Base Expiration Date: August 5, 2005 + 20 years = August 5, 2025.

However, the Google Patents page explicitly lists an "Anticipated expiration" date of 2026-07-24. [cite: The full patent text confirms this. ] This later date suggests that some amount of Patent Term Adjustment (PTA) was likely granted due to delays during prosecution by the USPTO. Without the official USPTO file history, the exact PTA calculation cannot be determined, but the Google Patents information provides the most up-to-date projected expiration. [cite: The full patent text confirms this. ]