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Header Replication in Accelerated TCP (Transport Control Protocol) Stack Processing

US 9,602,443 Term ended
OverviewFamilySources & methods

Term ended Mar 31, 2024 · High confidence

USPTO later recorded it as expired for non-payment on Apr 28, 2025.

Filed Dec 1, 2014 as application 14/557,020 · Granted Mar 21, 2017
Base term, 20 years from filing
Today
20 years from filing
Term ended Mar 31, 2024
2004 2026
Clock starts
Mar 31, 2004
Term ended
Mar 31, 2024
Granted
Mar 21, 2017
base term 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,121,125, US 8,929,381, to Mar 31, 2024. 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.
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 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. 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 Mar 31, 2004, when application 10/815,895, the earliest non-provisional in its chain, was filed (this one was filed Dec 1, 2014)Mar 31, 2024High 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 8,121,125, US 8,929,381)resolves to Mar 31, 2024, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 1 maintenance fees paidterm endedHigh confidence
USPTO status recordRecorded as expired for non-payment on Apr 28, 2025, after the term endedno changeHigh confidence
Computed term endThe steps above, in orderMar 31, 2024High confidence

This family

US 7,783,769In force
Nov 2026
Nov 2026
Application PCT/US2004/021015PCT application
no patent term
no patent term
US 7,788,391In force
Jun 2027
Jun 2027
US 8,121,125In force
Nov 2026
Nov 2026
US 8,238,360Term ended
Jun 2026
Jun 2026
US 7,525,967Lapsed on the fee record
Apr 2013
Apr 2013
US 8,929,381Term ended
Mar 2024
Mar 2024
US 9,602,443this patent
Mar 2024
Mar 2024
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.

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