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US 8,353,594 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Jan 15, 2025 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Apr 1, 2011 as application 13/078,589 · Granted Jan 15, 2013
Base term, 20 years from filing, plus 13 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Jan 15, 2025
2005 2026
Clock starts
Oct 7, 2005
No longer in force
Jan 15, 2025
Granted
Jan 15, 2013
Term would have run to
Oct 7, 2025
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
13
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 7,918,556.
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.
62
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 7, 2025: its 20-year base term plus 13 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 Oct 7, 2005, when application 11/245,756, the earliest non-provisional in its chain, was filed (this one was filed Apr 1, 2011)Oct 7, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+13 days, USPTO patent term adjustment recordOct 20, 2025High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,918,556)capped to Oct 7, 2025High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Jan 15, 2025High confidence
Computed term endThe steps above, in orderJan 15, 2025High confidence

This family

Application 11/245,756Abandoned
not computed
not computed
US 7,758,185Term ended
Oct 2025
Oct 2025
US 7,918,556Lapsed on the fee record
Apr 2023
Apr 2023
US 8,353,594this patent
Jan 2025
Jan 2025
US 9,010,929Term ended
Oct 2025
Oct 2025
US 9,155,077In force
Sep 2033
Sep 2033
US 11,428,937Lapsed on the fee record
Aug 2026
Aug 2026
US 8,696,113Term ended
Oct 2025
Oct 2025
8 of 62 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
Jun 4, 2013
Reel 30546, frame 104
Lewis, Scott W.Percept Technologies Inc.Assignment 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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