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US 8,052,724 Lapsed on the fee record
OverviewFamilySources & methods

Lapsed Nov 8, 2023 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

No current holder resolved from the recorded chain.
Filed Apr 5, 2004 as application 10/818,555 · Granted Nov 8, 2011
Base term, 20 years from filing, plus 1133 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Nov 8, 2023
2003 2026
Clock starts
Jun 18, 2003
No longer in force
Nov 8, 2023
Granted
Nov 8, 2011
Term would have run to
Nov 21, 2025
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
1,133
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 7,625,396, US 7,776,067.
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.
329
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 Nov 21, 2025: its 20-year base term plus 1133 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 Jun 18, 2003, when application 10/464,633, the earliest non-provisional in its chain, was filed (this one was filed Apr 5, 2004)Jun 18, 2023High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1133 days, USPTO patent term adjustment recordJul 25, 2026High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,625,396, US 7,776,067)capped to Nov 21, 2025High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Nov 8, 2023High confidence
Computed term endThe steps above, in orderNov 8, 2023High confidence

This family

US 6,716,214Term ended
Jun 2023
Jun 2023
US 8,137,386In force
Apr 2028
Apr 2028
US 7,160,300Term ended
Feb 2024
Feb 2024
US 7,470,279Term ended
Apr 2025
Apr 2025
Application PCT/US2004/010447PCT application
no patent term
no patent term
US 7,662,175Term ended
Jan 2024
Jan 2024
US 8,052,724this patent
Nov 2023
Nov 2023
Application PCT/US2004/031860PCT application
no patent term
no patent term
8 of 329 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

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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