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Strict-Sense Minimal Spanning Switch Non-Blocking Architecture

US 9,264,381 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Sep 12, 2025 (Barclays Bank PLC).

Term ends Jun 22, 2029 · High confidence

Filed Jun 7, 2013 as application 13/913,342 · Granted Feb 16, 2016
Base term plus 145 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2009 2029
Clock starts
Sep 4, 2009
Term ends
Jun 22, 2029
Granted
Feb 16, 2016
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
145
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 8,199,782, US 8,363,684, US 8,477,770.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
3
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 145 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are 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 Sep 4, 2009, when application 12/554,043, the earliest non-provisional in its chain, was filed (this one was filed Jun 7, 2013)Sep 4, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+145 days, USPTO patent term adjustment recordJan 27, 2030High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,199,782, US 8,363,684, US 8,477,770)capped to Jun 22, 2029High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJun 22, 2029High confidence

This family

US 8,254,378In force
May 2030
May 2030
US 8,477,770Lapsed on the fee record
Jul 2025
Jul 2025
US 9,264,381this patent
Jun 2029
Jun 2029
The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Aug 29, 2022
Reel 60921, frame 206
Altera Canada Ltd.; Intel of Canada, Ltd.Intel of Canada, Ltd.Merger and Change of Name
Aug 29, 2022
Reel 61333, frame 7
Altera Canada Co.Altera Canada Ltd.Change of Name
Aug 29, 2022
Reel 61334, frame 500
Intel of Canada, Ltd.Intel Technology of Canada, Ltd.Change of Name
Oct 10, 2022
Reel 61359, frame 223
Intel Technology of Canada, Ltd.Intel Technology of Canada, ULCChange of Name
Oct 10, 2022
Reel 61368, frame 947
Intel Technology of Canada, ULCIntel CorporationAssignment of Assignor's Interest
Jan 19, 2024
Reel 66353, frame 886
Intel CorporationAltera CorporationAssignment of Assignor's Interest
Sep 12, 2025
Reel 73431, frame 309
Altera CorporationBarclays Bank PLC, as Collateral AgentSecurity Interest

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