Collateral for a security interest recorded Dec 12, 2024 (Wilmington Trust, National Association).
Term ends May 23, 2028 · Medium confidence
20-year base term ended Nov 8, 2025
Why Medium: A parent in the chain could not be resolved.
Held by Dropbox, Inc.
Filed Sep 30, 2015 as application 14/872,004 · Granted May 17, 2022
Base term plus 927 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Nov 8, 2005
Nov 8, 2005
Term ends
May 23, 2028
May 23, 2028
Granted
May 17, 2022
May 17, 2022
base term
patent term adjustment
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
927
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.
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 927 days past its 20-year base term on prosecution delay. 1 of 1 maintenance fees is 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.
| 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 Sep 30, 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 | +927 days, USPTO patent term adjustment record | May 23, 2028 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 23, 2028 | Medium 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 | Term ended Nov 2025 | Nov 2025 |
| US 11,334,555 | this patent 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 14, 2017 Reel 42254, frame 1 | Dropbox, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Interest |
| Oct 12, 2017 Reel 43852, frame 764 | Strong, Jack Benjamin; Thomas, Gibu | Sharpcast, Inc. | Assignment of Assignor's Interest |
| Oct 17, 2017 Reel 44218, frame 561 | Sharpcast, Inc. | Sugarsync, Inc. | Change of Name |
| Oct 18, 2017 Reel 43894, frame 170 | Sugarsync, Inc. | Dropbox, Inc. | Assignment of Assignor's 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2028
Term ends May 23, 2028. No further fees fall due before then
Note
The 927 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
later US patents cite this one
That is top 10% of utility patents granted in 2022 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.