The Patent Finder
US

Boiler Loop System

US 10,458,662 In force
OverviewFamilySources & methods

Term ends Dec 29, 2026 · High confidence

Held by NIBCO Inc.
Filed Feb 1, 2018 as application 15/886,000 · Granted Oct 29, 2019
Base term plus 85 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2006 2026
Clock starts
Dec 29, 2006
Term ends
Dec 29, 2026
Granted
Oct 29, 2019
base term fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
85
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 8,316,886.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
12
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 85 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 1 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 Dec 29, 2006, when application 11/648,376, the earliest non-provisional in its chain, was filed (this one was filed Feb 1, 2018)Dec 29, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+85 days, USPTO patent term adjustment recordMar 24, 2027High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,316,886)capped to Dec 29, 2026High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 1 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 29, 2026High confidence

This family

Application 11/648,376Abandoned
not computed
not computed
Application 11/929,002Abandoned
not computed
not computed
US 8,770,223In force
Jul 2027
Jul 2027
Application 12/753,408Abandoned
not computed
not computed
US 8,316,886In force
Dec 2026
Dec 2026
Application 12/836,248Abandoned
not computed
not computed
Application 12/836,319Abandoned
not computed
not computed
Application PCT/US2010/055988PCT application
no patent term
no patent term
8 of 12 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 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited