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US 10,917,439 Surrendered on reissue
OverviewSources & methods

Surrendered on reissue Mar 11, 2025 · High confidence

Surrendered on reissue Mar 11, 2025 · its term and maintenance fees continue in US RE50,335.

Held by KNOWBE4, Inc.
Filed Jul 15, 2019 as application 16/511,465 · Granted Feb 9, 2021
Base term, 20 years from filing, plus 59 days of patent term adjustment (USPTO delay)
Today
Surrendered Mar 11, 2025
2019 2039
Clock starts
Jul 15, 2019
No longer in force
Mar 11, 2025
Granted
Feb 9, 2021
Term would have run to
Sep 12, 2039
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
59
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Fees paid on this patent before its reissue. Those after fall due on the reissue, which carries the term on.

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 Jul 15, 2019, when this application, 16/511,465, was filedJul 15, 2039High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+59 days, USPTO patent term adjustment recordSep 12, 2039High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidno changeHigh confidence
ReissueUS RE50,335 issued Mar 11, 2025, and this patent's term continues in it (35 U.S.C. 251, 252)surrendered Mar 11, 2025High confidence
Surrendered on reissueThe steps above, in orderMar 11, 2025High confidence

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.

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