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US 8,408,773 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Apr 2, 2025 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Apr 6, 2010 as application 12/754,866 · Granted Apr 2, 2013
Base term, 20 years from filing, plus 314 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Apr 2, 2025
2008 2028
Clock starts
Mar 19, 2008
No longer in force
Apr 2, 2025
Granted
Apr 2, 2013
Term would have run to
Oct 29, 2028
base term patent term adjustment 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
314
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 7,712,933.
2 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.

Its term would have run to Oct 29, 2028: its 20-year base term plus 314 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 Mar 19, 2008, when application 12/051,512, the earliest non-provisional in its chain, was filed (this one was filed Apr 6, 2010)Mar 19, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+314 days, USPTO patent term adjustment recordJan 27, 2029High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,712,933)capped to Oct 29, 2028High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Apr 2, 2025High confidence
Computed term endThe steps above, in orderApr 2, 2025High confidence

This family

US 7,712,933In force
Oct 2028
Oct 2028
US 8,408,773this patent
Apr 2025
Apr 2025
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
Apr 6, 2010
Reel 24191, frame 724
Judge, Michael K.Interlum, LLCAssignment of Assignor's Interest
Sep 18, 2012
Reel 28979, frame 979
Interlum, LLCInnotec, Corp.Assignment of Assignor's Interest
Nov 5, 2020
Reel 54290, frame 669
Innotec, Corp.Cibc Bank USASecurity Interest
Feb 10, 2024
Reel 66434, frame 140
Cibc Bank USAInnotec, Corp.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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