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Instant Messaging Interoperability Between Disparate Service Providers

US 11,240,194 Term ended
OverviewFamilyAssignmentsSources & methods

Also listed on Yahoo! Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ended Oct 19, 2026 · High confidence

Filed Jun 29, 2020 as application 16/916,024 · Granted Feb 1, 2022
Base term plus 22 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Oct 19, 2026
2006 2026
Clock starts
Sep 27, 2006
Term ended
Oct 19, 2026
Granted
Feb 1, 2022
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
22
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 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.
6
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 22 days past its 20-year base term on prosecution delay. 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 27, 2006, when application 11/528,753, the earliest non-provisional in its chain, was filed (this one was filed Jun 29, 2020)Sep 27, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+22 days, USPTO patent term adjustment recordOct 19, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 1 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderOct 19, 2026High confidence

This family

US 9,053,461In force
Aug 2028
Aug 2028
Application PCT/US2006/038728PCT application
no patent term
no patent term
US 9,762,530Term ended
Sep 2026
Sep 2026
US 10,701,026In force
Dec 2026
Dec 2026
US 11,240,194this patent
Oct 2026
Oct 2026
US 11,729,132Term ended
Sep 2026
Sep 2026
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
Jan 26, 2021
Reel 55030, frame 385
Vemulapelli, Rajanikanth; Lu, Ming Judy; Kota, Jayarama KumarYahoo! Inc.Assignment of Assignor's Interest
Jan 26, 2021
Reel 55037, frame 67
Excalibur IP, LLCSlack Technologies, Inc.Assignment of Assignor's Interest
Jan 26, 2021
Reel 55122, frame 406
Excalibur IP, LLCYahoo! Inc.Assignment of Assignor's Interest
Jan 26, 2021
Reel 55139, frame 248
Yahoo! Inc.Excalibur IP, LLCAssignment of Assignor's Interest
Jul 29, 2021
Reel 57475, frame 404
Slack Technologies, Inc.Slack Technologies, LLCMerger
Aug 18, 2023
Reel 64642, frame 564
Slack Technologies, LLCSalesforce, Inc.Assignment of Assignor's 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