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Method and Apparatus for a File Sharing and Synchronization System

US 8,370,298 Term ended
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Dec 12, 2024 (Wilmington Trust, National Association).

Term ended Nov 8, 2025 · High confidence

Filed Dec 23, 2010 as application 12/928,998 · Granted Feb 5, 2013
Base term, 20 years from filing
Today
20 years from filing
Term ended Nov 8, 2025
2005 2026
Clock starts
Nov 8, 2005
Term ended
Nov 8, 2025
Granted
Feb 5, 2013
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 7,885,925, to Nov 8, 2025. The term already ends on or before that date, so the cap shortened nothing.
3 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.
17
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. All three maintenance fees were paid, so no fee lapse ended it. 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 Nov 8, 2005, when application 11/269,498, the earliest non-provisional in its chain, was filed (this one was filed Dec 23, 2010)Nov 8, 2025High 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 7,885,925)resolves to Nov 8, 2025, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderNov 8, 2025High confidence

This family

Application 11/269,498Abandoned
not computed
not computed
US 7,885,925In force
Jan 2027
Jan 2027
US 8,370,298this patent
Nov 2025
Nov 2025
US 8,600,934Term ended
no later than Nov 2025
no later than Nov 2025
US 9,037,540Term ended
Nov 2025
Nov 2025
US 10,158,708Term ended
Nov 2025
Nov 2025
US 11,334,555In force
May 2028
May 2028
US 11,341,114In force
Feb 2028
Feb 2028
8 of 17 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
Nov 8, 2013
Reel 31570, frame 434
Venture Lending & Leasing IV, Inc. and Venture Lending & Leasing V, Inc.Sugarsync, Inc.Release of Security Interest
Nov 19, 2013
Reel 31674, frame 1
Sugarsync, Inc.Fifth Street Finance Corp.Security Agreement
Oct 17, 2014
Reel 33969, frame 891
Fifth Street Finance Corp.Sugarsync, Inc.Release of Security Interest
Nov 11, 2014
Reel 34144, frame 861
Sugarsync, Inc.Dropbox, Inc.Assignment of Assignor's Interest
Apr 14, 2017
Reel 42254, frame 1
Dropbox, Inc.JPMorgan Chase Bank, N.A., as Collateral AgentSecurity 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 12, 2024
Reel 69613, frame 744
JPMorgan Chase Bank, N.A., as Collateral AgentDropbox, Inc.Release of Security Interest
Dec 13, 2024
Reel 69635, frame 332
JPMorgan Chase Bank, N.A., as Collateral AgentDropbox, Inc.Release of 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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