Collateral for a security interest recorded Dec 12, 2024 (Wilmington Trust, National Association).
Term ended Nov 14, 2025 · Low confidence
20-year base term ended Nov 8, 2025
Held by Dropbox, Inc.
Filed Apr 10, 2015 as application 14/683,341 · Granted Dec 18, 2018
Base term plus 688 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Nov 14, 2025
2005
2026
Clock starts
Nov 8, 2005
Nov 8, 2005
Term ended
Nov 14, 2025
Nov 14, 2025
Granted
Dec 18, 2018
Dec 18, 2018
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
688
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 9,037,540.
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.
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 runs 688 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. Confidence: Low. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 8, 2005, when application 11/269,498, the earliest non-provisional in its chain, was filed (this one was filed Apr 10, 2015); a parent in its chain could not be resolved (the next row) | Nov 8, 2025 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +688 days, USPTO patent term adjustment record | Sep 27, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,037,540) | capped to Nov 14, 2025 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | term ended | High confidence |
| Further caveats on record | The record names parents not resolved: 14075598, 13757024, 12928998, 11269498 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Nov 14, 2025 | Low confidence |
This family
| Application 11/269,498 | Abandoned not computed | not computed |
| US 7,885,925 | In force Jan 2027 | Jan 2027 |
| US 8,370,298 | Term ended Nov 2025 | Nov 2025 |
| US 8,600,934 | Term ended no later than Nov 2025 | no later than Nov 2025 |
| US 9,037,540 | Term ended Nov 2025 | Nov 2025 |
| US 10,158,708 | this patent Nov 2025 | Nov 2025 |
| US 11,334,555 | In force May 2028 | May 2028 |
| US 11,341,114 | In 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Apr 12, 2016 Reel 38251, frame 142 | Strong, Jack Benjamin; Thomas, Gibu | Sharpcast, Inc. | Assignment of Assignor's Interest |
| Apr 12, 2016 Reel 38251, frame 193 | Sugarsync, Inc. | Dropbox, Inc. | Assignment of Assignor's Interest |
| Apr 12, 2016 Reel 38413, frame 488 | Sharpcast, Inc. | Sugarsync, Inc. | Change of Name |
| Apr 14, 2017 Reel 42254, frame 1 | Dropbox, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Interest |
| Mar 10, 2021 Reel 55670, frame 219 | Dropbox, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Patent Security Agreement |
| Dec 12, 2024 Reel 69604, frame 611 | Dropbox, Inc. | Wilmington Trust, National Association, as Collateral Agent | Security Interest |
| Dec 12, 2024 Reel 69613, frame 744 | JPMorgan Chase Bank, N.A., as Collateral Agent | Dropbox, Inc. | Release of Security Interest |
| Dec 13, 2024 Reel 69635, frame 332 | JPMorgan Chase Bank, N.A., as Collateral Agent | Dropbox, 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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Alerts on its grants, lapses and transfers.
What's changing
Note
The 688 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 9,037,540.
Citations
23
later US patents cite this one
That is top 25% of utility patents granted in 2018 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.