The Patent Finder
US

Method and Apparatus for Controlling Fluid Volumes to Achieve Separation and PCR Amplification

US 12,758,972 In force
OverviewFamilySources & methods

Also listed on Formulatrix, LLC, an earlier holder on the record.

Term ends Aug 11, 2043 · High confidence

Filed Apr 18, 2023 as application 18/032,455 · Granted Oct 13, 2026
Base term plus 661 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2021 2043
Clock starts
Oct 19, 2021
Term ends
Aug 11, 2043
Granted
Oct 13, 2026
base term patent term adjustment 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
661
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
10
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 661 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are 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 Oct 19, 2021, when application PCT/US2021/055638, the earliest non-provisional in its chain, was filed (this one was filed Apr 18, 2023)Oct 19, 2041High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+661 days, USPTO patent term adjustment recordAug 11, 2043High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 11, 2043High confidence

This family

Application PCT/US2021/055638PCT application
no patent term
no patent term
Application PCT/US2021/055645PCT application
no patent term
no patent term
Application PCT/US2021/055647PCT application
no patent term
no patent term
Application PCT/US2021/055649PCT application
no patent term
no patent term
US 12,758,972this patent
Aug 2043
Aug 2043
US 12,678,786In force
Mar 2043
Mar 2043
Application 18/032,459Pending
not computed
not computed
Application 18/032,463Pending
not computed
not computed
8 of 10 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.

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