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Low-Burst Polymers and Methods to Produce Polymer

US 9,974,824 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed May 22, 2026 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Held by Tolmar Inc.
Filed Apr 18, 2017 as application 15/490,615 · Granted May 22, 2018
Base term, 20 years from filing
Today
Lapsed May 22, 2026
2008 2028
Clock starts
Feb 13, 2008
No longer in force
May 22, 2026
Granted
May 22, 2018
Term would have run to
Feb 13, 2028
base term after the term ends 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.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
8
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Feb 13, 2028: its 20-year base term, with no adjustment for prosecution delay. 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 Feb 13, 2008, when application PCT/US2008/001887, the earliest non-provisional in its chain, was filed (this one was filed Apr 18, 2017)Feb 13, 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 events1 of 2 maintenance fees paidlapsed May 22, 2026High confidence
Computed term endThe steps above, in orderMay 22, 2026High confidence

This family

US 9,187,593Lapsed on the fee record
Nov 2023
Nov 2023
US 9,561,282In force
Feb 2028
Feb 2028
US 9,655,970In force
Feb 2028
Feb 2028
US 9,974,824this patent
May 2026
May 2026
US 10,206,970In force
Feb 2028
Feb 2028
US 11,147,880In force
Feb 2028
Feb 2028
US 11,717,572In force
Feb 2028
Feb 2028
7 of 8 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
Sep 18, 2017
Reel 43611, frame 728
Dadey, Eric; Middleton, John; Norton, Richard L.Tolmar Therapeutics Inc.Assignment of Assignor's Interest
Oct 2, 2017
Reel 43756, frame 502
Tolmar Therapeutics, Inc.; Tolmar, Inc.Wells Fargo Bank, National Association, as Administrative AgentSecurity Interest
Feb 23, 2023
Reel 62785, frame 849
Tolmar Therapeutics Inc.Tolmar Inc.Merger

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.

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