The Patent Finder
US

Multifunctional Restrictive Valve

US 8,434,693 Term ended
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Aug 1, 2025 (Bain Capital Credit, LP).

Term ended Nov 2, 2025 · High confidence

Filed Dec 13, 2010 as application 12/966,471 · Granted May 7, 2013
Base term plus 140 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Nov 2, 2025
2005 2026
Clock starts
Jun 15, 2005
Term ended
Nov 2, 2025
Granted
May 7, 2013
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
140
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,878,417, to Nov 2, 2025. The term already ends on or before that date, so the cap shortened nothing.
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 140 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. 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 Dec 13, 2010)Jun 15, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+140 days, USPTO patent term adjustment recordNov 2, 2025High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,878,417)resolves to Nov 2, 2025, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderNov 2, 2025High confidence

This family

US 7,681,804Term ended
Sep 2026
Sep 2026
US 7,878,417In force
Aug 2027
Aug 2027
US 8,464,962Term ended
Sep 2026
Sep 2026
US 8,434,693this patent
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
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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited