The Patent Finder
US

Survivin-derived peptides and uses thereof

US RE48,522 Term ended
OverviewSources & methods

Term ended Jul 18, 2025 · From the USPTO record

Named at grant Survac APS · find this owner
Filed Jul 19, 2018 as application 16/039,999 · Granted Apr 20, 2021
Base term plus 900 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Jul 18, 2025
2003 2026
Clock starts
Jan 30, 2003
Term ended
Jul 18, 2025
Granted
Apr 20, 2021
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
900
Days of term adjustment
Read from the original patent's USPTO patent term adjustment record, which governs a reissue. Not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from the original patent's grant, which is not on record here. This counts the ones the record shows paid.

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.
Step Input Date after this step Confidence
Base term, 20 years from filingClock starts Jan 30, 2003, when the earliest non-provisional application in its chain was filed (this one was filed Jul 19, 2018); a parent in its chain could not be resolved (the next row)Jan 30, 2023High confidence
Continuity chainA reissue: its term follows the original patent's, with the original's term adjustment; a parent in the chain could not be resolveddated from this application's own claimLow confidence
Patent term adjustment+900 days, the original patent's USPTO patent term adjustment record, which governs a reissue (35 U.S.C. 251). This reissue's own record carries noneJul 18, 2025Medium confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderJul 18, 2025From the USPTO record

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.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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