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Systems and Methods for Supporting Social Productivity Using a History Buffer

US 9,654,428 In force, term unresolved
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Dec 12, 2024 (Wilmington Trust, National Association).

Term ends no later than Feb 21, 2034 · Medium confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Held by Cloudon Ltd.
Filed Feb 21, 2014 as application 14/187,141 · Granted May 16, 2017
Base term, 20 years from filing
Today
20 years from filing
2014 2034
Clock starts
Feb 21, 2014
Ends no later than
Feb 21, 2034
Granted
May 16, 2017
base term 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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
4
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 on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Feb 21, 2014, when this application, 14/187,141, was filedFeb 21, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Feb 21, 2034Medium confidence

This family

US 9,253,130In force
Feb 2034
Feb 2034
US 9,825,890In force
Feb 2034
Feb 2034
US 9,654,428this patent
no later than Feb 2034
no later than Feb 2034
US 9,607,278In force
Feb 2034
Feb 2034
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
Apr 23, 2014
Reel 32740, frame 31
Zaveri, Jay; Glik, TsahiCloudon Ltd.Assignment of Assignor's Interest
Mar 10, 2021
Reel 55670, frame 219
Dropbox, Inc.JPMorgan Chase Bank, N.A., as Collateral AgentPatent Security Agreement
Dec 12, 2024
Reel 69604, frame 611
Dropbox, Inc.Wilmington Trust, National Association, as Collateral AgentSecurity Interest
Dec 13, 2024
Reel 69635, frame 332
JPMorgan Chase Bank, N.A., as Collateral AgentDropbox, Inc.Release of Security Interest
Jun 5, 2026
Reel 76607, frame 1
Dropbox, Inc.Jpmorgan Chase Bank, 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.

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