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US

Carbon Fibers Having Improved Strength and Modulus and an Associated Method and Apparatus for Preparing Same

US 8,591,859 In force
OverviewFamilyAssignmentsSources & methods

Term ends Mar 7, 2028 · High confidence

No current holder resolved from the recorded chain.
Filed May 19, 2010 as application 12/783,069 · Granted Nov 26, 2013
Base term plus 471 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2028
Clock starts
Nov 22, 2006
Term ends
Mar 7, 2028
Granted
Nov 26, 2013
base term patent term adjustment 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
471
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
10
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 runs 471 days past its 20-year base term on 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 Nov 22, 2006, when application 11/562,867, the earliest non-provisional in its chain, was filed (this one was filed May 19, 2010)Nov 22, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+471 days, USPTO patent term adjustment recordMar 7, 2028High 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 orderMar 7, 2028High confidence

This family

US 7,749,479In force
Jun 2028
Jun 2028
Application PCT/US2007/083886PCT application
no patent term
no patent term
US 8,591,859this patent
Mar 2028
Mar 2028
US 8,734,754Lapsed on the fee record
May 2022
May 2022
US 8,871,172Lapsed on the fee record
Oct 2022
Oct 2022
US 9,121,112Lapsed on the fee record
Sep 2023
Sep 2023
US 9,340,905Lapsed on the fee record
May 2024
May 2024
US 9,677,195In force
Nov 2026
Nov 2026
8 of 10 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
Aug 20, 2010
Reel 24864, frame 16
Hexcel CorporationBank Of America, N.a.Security Agreement
Jul 1, 2013
Reel 30724, frame 287
Hexcel Corporation; Hexcel Holdings Luxembourg S.A.R.L.RBS Citizens, N.A., as Administrative AgentSecurity Agreement
Sep 3, 2013
Reel 31140, frame 729
Bank Of America, N.a.Hexcel CorporationRelease of Security Interest
Sep 24, 2014
Reel 33813, frame 565
Citizens Bank, National Association (F/K/A RBS Citizens, N.A.)Hexcel CorporationTermination of Security Interest in Patents
Oct 2, 2014
Reel 33887, frame 199
Citizens Bank, National AssociationHexcel Corporation; Hexcel Holdings Luxembourg S.À.R.L.Release of Security Interest
Oct 2, 2014
reel/frame not recorded
Citizens Bank, National AssociationHexcel CorporationRelease of Security Interest
Oct 2, 2014
reel/frame not recorded
Citizens Bank, National AssociationHexcel Holdings Luxembourg S.À.R.L.Release of Security Interest

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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