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Thermostable Microporous Polymethacrylimide Foams

US 8,722,751 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Rohm GmbH, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Dec 2, 2027 · High confidence

Filed Apr 28, 2006 as application 10/577,815 · Granted May 13, 2014
Base term plus 1227 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2004 2027
Clock starts
Jul 23, 2004
Term ends
Dec 2, 2027
Granted
May 13, 2014
base term patent term adjustment fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,227
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.
2
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 1227 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 Jul 23, 2004, when application PCT/EP2004/008218, the earliest non-provisional in its chain, was filed (this one was filed Apr 28, 2006)Jul 23, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1227 days, USPTO patent term adjustment recordDec 2, 2027High 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 orderDec 2, 2027High confidence

This family

US 8,722,751this patent
Dec 2027
Dec 2027
1 of 2 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
Nov 29, 2007
Reel 20175, frame 501
Scherble, Jonas; Geyer, Werner; Seibert, Hermann; Maier, Leonhard; Jahn, Torsten; Barthel, ThomasRoehm GmbH & Co. KGAssignment of Assignor's Interest
Feb 25, 2010
Reel 23998, frame 760
Rohm GmbH & Co. KGRohm GmbHChange of Entity
Feb 25, 2010
Reel 23998, frame 789
Rohm GmbHEvonik Rohm GmbHChange of Name
Feb 11, 2020
Reel 51893, frame 671
Evonik Roehm GmbHRoehm GmbHChange of Name
Feb 11, 2020
Reel 51893, frame 727
Roehm GmbHEvonik Degussa GmbHAssignment of Assignor's Interest
Feb 11, 2020
Reel 51894, frame 1
Evonik Degussa GmbHEvonik Operations GmbHChange 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.

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