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US 8,847,925 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Sep 30, 2018 on the fee record · High confidence

First maintenance fee unpaid; grace period ended.

Filed Oct 23, 2011 as application 13/265,875 · Granted Sep 30, 2014
Base term, 20 years from filing, plus 149 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Sep 30, 2018
2010 2030
Clock starts
Apr 26, 2010
No longer in force
Sep 30, 2018
Granted
Sep 30, 2014
Term would have run to
Jun 5, 2030
base term patent term adjustment after the term ends 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
149
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 9,864,127.
0 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.
30
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 Jun 5, 2030: its 20-year base term plus 149 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 26, 2010, when application PCT/FI2010/050339, the earliest non-provisional in its chain, was filed (this one was filed Oct 23, 2011)Apr 26, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+149 days, USPTO patent term adjustment recordSep 22, 2030High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 9,864,127)capped to Jun 5, 2030High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidlapsed Sep 30, 2018High confidence
Computed term endThe steps above, in orderSep 30, 2018High confidence

This family

US 8,792,100In force
Jul 2030
Jul 2030
US 8,847,925this patent
Sep 2018
Sep 2018
US 9,235,043In force
Mar 2033
Mar 2033
Application 13/320,265Abandoned
not computed
not computed
US 8,995,044In force
Mar 2031
Mar 2031
US 8,786,836In force
Apr 2031
Apr 2031
Application 13/502,134Abandoned
not computed
not computed
US 8,923,994In force
Nov 2030
Nov 2030
8 of 30 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
Oct 23, 2011
Reel 27103, frame 487
Ronka, Kari; Keranen, Antti; Aikio, JanneTeknologian Tutkimuskeskus VTTAssignment of Assignor's 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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