The Patent Finder
US

Phenoxy-Pyrrolidine Derivative and Its Use and Compositions

US 8,524,761 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jul 28, 2028 · High confidence

Filed Jul 13, 2012 as application 13/549,299 · Granted Sep 3, 2013
Base term, 20 years from filing
Today
20 years from filing
2008 2028
Clock starts
Jul 28, 2008
Term ends
Jul 28, 2028
Granted
Sep 3, 2013
base term fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
4
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jul 28, 2008, when application PCT/IB2008/002028, the earliest non-provisional in its chain, was filed (this one was filed Jul 13, 2012)Jul 28, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJul 28, 2028High confidence

This family

US 8,242,286In force
Aug 2028
Aug 2028
US 8,524,761this patent
Jul 2028
Jul 2028
US 8,980,936In force
Jul 2028
Jul 2028
3 of 4 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Apr 24, 2013
Reel 30281, frame 433
Medicis Pharmaceutical CorporationGoldman Sachs Lending Partners LLCSecurity Agreement
Sep 25, 2013
Reel 31280, frame 766
Medicis Pharmaceutical CorporationThesan Pharmaceuticals, Inc.Assignment of Assignor's Interest
Jan 10, 2014
Reel 31944, frame 190
Goldman Sachs Lending Partners LLCMedicis Pharmaceutical CorporationRelease of Security Interest
Jan 10, 2014
Reel 31944, frame 256
Graceway Pharmaceuticals, LLCMedicis Pharmaceutical CorporationAssignment of Assignor's Interest
Jan 10, 2014
Reel 31944, frame 308
Pfizer Inc.Graceway Pharmaceuticals, LLCAssignment of Assignor's Interest
Jan 10, 2014
Reel 31944, frame 321
Kolosko, Nicole L.; Li, JinPfizer Inc.Assignment of Assignor's Interest
Jan 9, 2015
Reel 34749, frame 689
Goldman Sachs Lending Partners, LLCBarclays Bank PLC, as Successor AgentNotice of Succession of Agency
Jan 29, 2018
Reel 45177, frame 26
Goldman Sachs Lending Partners LLCBarclays Bank PLC, as Successor AgentCorrective Assignment to Correct the Inadvertent Patent Numbers Added Previously Recorded at Reel: 034749 Frame: 0689. Assignor(S) Hereby Confirms the Assignment .
Aug 23, 2018
Reel 46687, frame 622
Thesan Pharmaceuticals, Inc.GDD Therapeutics, LLCAssignment of Assignor's Interest
Oct 26, 2020
Reel 54209, frame 327
GDD Therapeutics, LLC; GDD Therapeutics, Inc.GDD Therapeutics, Inc.Merger and Change of Name
Oct 27, 2020
Reel 54226, frame 49
GDD Therapeutics, Inc.Lipidio Pharmaceuticals Inc.Change of Name

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited