Extensions

Patent Term and Family Data for U.S. Patent No. 8,667,571

Date of Analysis: May 12, 2026

Based on a review of the United States Patent and Trademark Office (USPTO) records for U.S. Patent No. 8,667,571, the following details regarding its term, related applications, and family members have been determined.

Patent Term Adjustments (PTA) & Extensions (PTE)

• Patent Term Adjustment (PTA): There is no record of any Patent Term Adjustment (PTA) granted for this patent. The patent's term is calculated from its earliest non-provisional filing date.
• Patent Term Extension (PTE): There is no record of any Patent Term Extension (PTE) granted for this patent under 35 U.S.C. § 156 for regulatory delays.

Application-Level Data

• Application Number: 13/705,055
• Filing Date: December 4, 2012
• Issue Date: March 4, 2014

Continuity Data

U.S. Patent No. 8,667,571 is a continuation of U.S. Patent Application No. 13/339,943, filed on December 29, 2011, which is now U.S. Patent No. 8,365,274.

That application is, in turn, a continuation of U.S. Patent Application No. 12/361,599, filed on January 28, 2009, which is now U.S. Patent No. 8,112,544.

This chain of applications claims the benefit of the following U.S. Provisional Applications:

• 61/024,232, filed Jan. 28, 2008
• 61/025,875, filed Feb. 4, 2008
• 61/038,973, filed Mar. 24, 2008
• 61/043,066, filed Apr. 8, 2008
• 61/044,277, filed Apr. 11, 2008
• 61/044,558, filed Apr. 14, 2008
• 61/053,233, filed May 14, 2008
• 61/057,749, filed May 30, 2008
• 61/059,334, filed Jun. 6, 2008
• 61/074,749, filed Jun. 23, 2008
• 61/078,855, filed Jul. 8, 2008
• 61/079,328, filed Jul. 9, 2008
• 61/098,873, filed Sep. 22, 2008
• 61/110,332, filed Oct. 31, 2008

Related U.S. Patent Documents (Family Members)

This patent is part of a large family of related U.S. patents and applications that claim priority to the same provisional applications. Key related patents include, but are not limited to:

• Parent Application:
  • U.S. Patent No. 8,365,274 (issued Jan. 29, 2013)
• Grandparent Application:
  • U.S. Patent No. 8,112,544 (issued Feb. 7, 2012)
• Other Related Patents & Applications: The continuity data indicates a large family of patents stemming from these applications, including numerous continuation and divisional applications. A full list can be found in the USPTO's Public PAIR system under the application numbers provided.

Projected Expiration Date

The term of a U.S. patent is generally 20 years from the filing date of the earliest U.S. or international (PCT) application to which priority is claimed (excluding provisional applications).

• Earliest non-provisional filing date: January 28, 2009 (from application no. 12/361,599)
• 20-year term from filing date: January 28, 2029

Therefore, the projected expiration date for U.S. Patent No. 8,667,571 is January 28, 2029.