The Patent Finder
US

Prevention of Disulfide Bond Reduction During Recombinant Production of Polypeptides

US 10,808,037 In force
OverviewFamilySources & methods

Term ends Jul 8, 2028 · High confidence

Filed Apr 13, 2020 as application 16/847,309 · Granted Oct 20, 2020
Base term, 20 years from filing
Today
20 years from filing
2008 2028
Clock starts
Jul 8, 2008
Term ends
Jul 8, 2028
Granted
Oct 20, 2020
base term 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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,759,866, US 8,574,869, to Jul 8, 2028. The term already ends on or before that date, so the cap shortened nothing.
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.
18
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 is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jul 8, 2008, when application 12/217,745, the earliest non-provisional in its chain, was filed (this one was filed Apr 13, 2020)Jul 8, 2028High 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 10,759,866, US 8,574,869)resolves to Jul 8, 2028, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 1 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJul 8, 2028High confidence

This family

Application 12/217,745Abandoned
not computed
not computed
US 8,574,869In force
Jul 2028
Jul 2028
Application 14/043,758Abandoned
not computed
not computed
Application 15/488,917Abandoned
not computed
not computed
US 10,759,866In force
Jul 2028
Jul 2028
US 10,906,986In force
Jul 2028
Jul 2028
US 10,808,037this patent
Jul 2028
Jul 2028
US 11,639,395In force
Jul 2029
Jul 2029
8 of 18 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