Term ends May 27, 2035 · High confidence
20-year base term ends May 27, 2035
Held by Quantum Corporation
Filed Jun 27, 2022 as application 17/850,398 · Granted Apr 11, 2023
Base term, 20 years from filing
Today
2015
2035
Clock starts
May 27, 2015
May 27, 2015
Term ends
May 27, 2035
May 27, 2035
Granted
Apr 11, 2023
Apr 11, 2023
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,903,858, US 11,398,836, to May 27, 2035. The term already ends on or before that date, so the cap shortened nothing.
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.
3
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. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts May 27, 2015, when application 14/722,809, the earliest non-provisional in its chain, was filed (this one was filed Jun 27, 2022) | May 27, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,903,858, US 11,398,836) | resolves to May 27, 2035, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 27, 2035 | High confidence |
This family
| US 10,903,858 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| US 11,398,836 | In force May 2035 | May 2035 |
| US 11,626,890 | this patent May 2035 | May 2035 |
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 |
|---|---|---|---|
| Jun 22, 2023 Reel 64069, frame 563 | Quantum Corporation; Quantum Lto Holdings, LLC | Blue Torch Finance, LLC | Supplement to Intellectual Property Security Agreement |
| Jun 26, 2023 Reel 64053, frame 51 | Quantum Corporation | Pnc Bank, National Association | Security Interest |
| Apr 24, 2025 Reel 71019, frame 850 | Blue Torch Finance LLC, as Agent for the Secured Parties | Alter Domus (US) LLC, as Agent for the Secured Parties | Assignment of Assignor's Interest |
| Aug 19, 2025 Reel 72522, frame 968 | PNC Bank, National Association, as Agent | Quantum Corporation | Termination and Release of Supplement to Intellectual Property Security Agreement at Reel/Frame No. 64053/0051 |
| Dec 18, 2025 Reel 74024, frame 84 | Quantum Corporation | U.S. Bank Trust Company, National Association, as Agent | Intellectual Property Security Agreement |
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
May 2035
Term ends May 27, 2035. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,903,858, US 11,398,836, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2023 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.