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US

Managing Electronic Messages with a Message Transfer Agent

US 11,070,511 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Feb 12, 2026 (Bank of America, N.A.).

Term ends Apr 23, 2038 · High confidence

Held by Hubspot Inc.
Filed Jan 30, 2018 as application 15/884,264 · Granted Jul 20, 2021
Base term plus 83 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2018 2038
Clock starts
Jan 30, 2018
Term ends
Apr 23, 2038
Granted
Jul 20, 2021
base term patent term adjustment fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
83
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
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
50
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 83 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Jan 30, 2018, when this application, 15/884,264, was filedJan 30, 2038High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+83 days, USPTO patent term adjustment recordApr 23, 2038High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderApr 23, 2038High confidence

This family

US 10,867,003In force
Apr 2036
Apr 2036
Application 15/807,869Abandoned
not computed
not computed
Application PCT/US2017/060835PCT application
no patent term
no patent term
US 11,070,511this patent
Apr 2038
Apr 2038
Application PCT/US2018/016038PCT application
no patent term
no patent term
Application 62/669,617Provisional application
no patent term
no patent term
Application PCT/US2018/032348PCT application
no patent term
no patent term
Application 62/785,544Provisional application
no patent term
no patent term
8 of 50 applications in this family shown, earliest filings first. 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
Feb 14, 2018
Reel 44928, frame 398
O'brien, Michael; Baker, Kevin; Kebinger, James; Axiak, MichaelHubspot Inc.Assignment of Assignor's Interest
Feb 12, 2026
Reel 74818, frame 36
Hubspot, Inc.Bank Of America, N.a.Security 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 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited