Extensions — US Patent 8400835

Projected Expiration Date: January 3, 2030

Filing Date: The application for this patent (US 13/190,130) was filed on July 25, 2011.
Term Calculation Basis: The patent's term is calculated from its role as a US national stage entry of an international (PCT) application. The controlling date for the 20-year term is the PCT filing date of the parent application (PCT/JP2009/004737), which is September 18, 2009.
Standard Expiration: The standard 20-year term would expire on September 18, 2029.
Patent Term Adjustment (PTA): The USPTO has granted a Patent Term Adjustment of 107 days due to administrative delays during prosecution. This adjustment extends the patent's enforceability beyond the standard 20-year term.
Patent Term Extension (PTE): There is no evidence of any Patent Term Extension (PTE) under 35 U.S.C. § 156, which typically compensates for regulatory review delays (e.g., by the FDA) and is not applicable here.
Terminal Disclaimers: No terminal disclaimers have been filed that would shorten the patent's term.
Maintenance Fees: All required maintenance fees have been paid to date, and the patent is currently active. The 12th-year fee was paid on May 16, 2024.

The projected expiration date of January 3, 2030, is calculated by adding the 107-day PTA to the standard expiration date of September 18, 2029.

Continuation Applications: US 8,400,835 is a continuation, specifically the US national stage entry of the international application PCT/JP2009/004737. There are no known child applications (continuations or divisionals) that claim priority back to US 8,400,835.
Priority Claim: The patent claims priority to Japanese Patent Application No. 2009-026211, filed on February 6, 2009.
International Patent Family: This US patent is part of a family of patents filed in multiple jurisdictions, all claiming priority from the same initial Japanese application. The known family members include:
- International Application: WO2010089815A1
- Japan: JP5468023B2
- China: CN102301426A