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Multifunctional Restrictive Valve

US 7,878,417 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Aug 1, 2025 (Bain Capital Credit, LP).

Term ends Aug 26, 2027 · High confidence

Filed Apr 23, 2007 as application 11/788,884 · Granted Feb 1, 2011
Base term plus 802 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2005 2027
Clock starts
Jun 15, 2005
Term ends
Aug 26, 2027
Granted
Feb 1, 2011
base term patent term adjustment 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
802
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
8
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 runs 802 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 15, 2005, when application 11/154,404, the earliest non-provisional in its chain, was filed (this one was filed Apr 23, 2007)Jun 15, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+802 days, USPTO patent term adjustment recordAug 26, 2027High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 26, 2027High confidence

This family

US 7,681,804Term ended
Sep 2026
Sep 2026
US 7,878,417this patent
Aug 2027
Aug 2027
US 8,464,962Term ended
Sep 2026
Sep 2026
US 8,434,693Term ended
Nov 2025
Nov 2025
US 9,309,655Term ended
Sep 2025
Sep 2025
US 9,611,629Term ended
no later than Jun 2025
no later than Jun 2025
US 9,927,042Term ended
Jun 2025
Jun 2025
US 10,808,857Term ended
no later than Jun 2025
no later than Jun 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 23, 2007
Reel 19274, frame 166
Brown, Michael; Lockhart, John; Doss, Jeffrey S.Showerstart, LLCAssignment of Assignor's Interest
Dec 30, 2015
Reel 37405, frame 538
Showerstart, LLCEvolve Technologies, LLCChange of Name
Sep 22, 2023
Reel 64995, frame 919
Evolve Technologies, LLCAm Conservation GroupAssignment of Assignor's Interest
Aug 1, 2025
Reel 71905, frame 305
Am Conservation Group, Inc.; Planetecosystems, LLCBain Capital Credit, LPSecurity 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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