Extensions

Analysis of Patent Term, Continuations, and Family for US7430471

As of April 30, 2026, the following is a detailed analysis of the patent term, application history, and related family members for US Patent No. 7,430,471.

Patent Term Adjustments (PTA) and Extensions (PTE)

A review of the USPTO's public records for US7430471 indicates the following:

• Patent Term Adjustment (PTA): There is no record of any Patent Term Adjustment being granted for this patent. The time from the application filing date (October 25, 2005) to the issue date (September 30, 2008) was less than three years, and no other significant prosecution delays that would typically trigger a PTA are noted in the file history.
• Patent Term Extension (PTE): There is no record of any Patent Term Extension being granted. PTE is typically associated with delays in regulatory review for products like pharmaceuticals and is not applicable to this patent's technology area.

Application Filing and Type

• Application Number: The patent was granted from US application number 11/257,122.
• Application Type: This was a non-provisional utility application.
• Priority Claim: The application claimed priority to U.S. Provisional Patent Application No. 60/621,075, filed on October 25, 2004.

Continuation and Divisional Applications

A search of the USPTO database reveals one related application that claims a direct relationship to the application for US7430471:

• Divisional Application: A divisional application, US12/197,441, was filed on August 25, 2008. This application was subsequently published as US20080319817A1 but was later abandoned. A divisional application typically pursues claims that were part of the original disclosure but were restricted by the examiner during prosecution of the parent case.

There are no continuation or continuation-in-part applications that claim priority to US7430471.

Patent Family Members

US7430471 is part of a patent family that includes applications filed in several other countries through the Patent Cooperation Treaty (PCT) application PCT/US2005/038438. Key members of this international patent family include:

• World Intellectual Property Organization (WIPO): WO2006047538A2
• Canada: CA2585229A1 (Abandoned)
• China: CN101088001A
• Europe: EP1815225A2 (Withdrawn)
• Mexico: MX2007004848A

Projected Expiration Date

The term of a US patent filed after June 8, 1995, is 20 years from the earliest effective, non-provisional filing date.

• Filing Date: October 25, 2005
• Standard 20-Year Term: Adding 20 years to the filing date results in a base expiration date.
• Calculated Expiration Date: October 25, 2025

Since there were no Patent Term Adjustments or Extensions, the calculated expiration date stands.

Conclusion: US Patent No. 7,430,471 expired on October 25, 2025.