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Polymer Composition

US 8,481,628 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Apr 18, 2025 · High confidence

USPTO later recorded it as expired for non-payment on Aug 11, 2025.

Filed Jan 20, 2012 as application 13/355,267 · Granted Jul 9, 2013
Base term, 20 years from filing
Today
20 years from filing
Term ended Apr 18, 2025
2005 2026
Clock starts
Apr 18, 2005
Term ended
Apr 18, 2025
Granted
Jul 9, 2013
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,183,315, to Apr 18, 2025. The term already ends on or before that date, so the cap shortened nothing.
2 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.
3
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Apr 18, 2005, when application PCT/NO2005/000127, the earliest non-provisional in its chain, was filed (this one was filed Jan 20, 2012)Apr 18, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,183,315)resolves to Apr 18, 2025, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 2 maintenance fees paidterm endedHigh confidence
USPTO status recordRecorded as expired for non-payment on Aug 11, 2025, after the term endedno changeHigh confidence
Computed term endThe steps above, in orderApr 18, 2025High confidence

This family

US 8,183,315Term ended
Oct 2026
Oct 2026
US 8,481,628this patent
Apr 2025
Apr 2025
2 of 3 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
Mar 19, 2013
Reel 30042, frame 293
Mannle, Ferdinand; Beylich, Jest; Hauge, Roger; Simon, Christian; Kleppe, Emil Arne; Larsen, Aage Gellein; Roseth, Kaare RogerNor-X-Industry AsAssignment of Assignor's Interest
Sep 20, 2019
Reel 50448, frame 665
Nor-X-Industry AsSinvent AsAssignment of Assignor's Interest
Sep 20, 2019
Reel 50448, frame 765
Sintef Tto AsFunzionano AsAssignment of Assignor's Interest
Sep 20, 2019
Reel 50457, frame 276
Sinvent AsSintef Tto AsChange of Name
Oct 23, 2019
Reel 50801, frame 157
Sintef Tto AsFunzionano AsCorrective Assignment to Correct the the Address for the Assignee Previously Recorded at Reel: 050448 Frame: 0765. Assignor(S) Hereby Confirms the Assignment.

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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