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US

Method and Apparatus for Dropping a Pump Down Plug or Ball

US 10,196,876 In force
OverviewFamilySources & methods

Term ends Aug 25, 2027 · High confidence

Filed Jan 8, 2018 as application 15/864,203 · Granted Feb 5, 2019
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
20 years from filing
2009 2029
Clock starts
Aug 27, 2009
Term ends
Aug 25, 2027
Granted
Feb 5, 2019
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
None
Term adjustment
No prosecution delay on this record.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,607,481, US 7,841,410, US 7,918,278, US 8,256,515, US 8,622,130, US 8,651,174, US 8,939,209, US 9,410,395, US 9,863,212.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
13
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is paid so far. 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 Aug 27, 2009, when application 12/548,577, the earliest non-provisional in its chain, was filed (this one was filed Jan 8, 2018)Aug 27, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,607,481, US 7,841,410, US 7,918,278, US 8,256,515, US 8,622,130, US 8,651,174, US 8,939,209, US 9,410,395, US 9,863,212)capped to Aug 25, 2027High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 25, 2027High confidence

This family

US 8,256,515In force
Aug 2027
Aug 2027
Application PCT/US2010/046924PCT application
no patent term
no patent term
US 8,622,130In force
Aug 2027
Aug 2027
US 8,939,209In force
Aug 2027
Aug 2027
US 9,410,395In force
Aug 2027
Aug 2027
US 9,863,212In force
Aug 2027
Aug 2027
US 10,196,876this patent
Aug 2027
Aug 2027
US 10,633,950In force
Aug 2027
Aug 2027
8 of 13 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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