Collateral for a security interest recorded May 27, 2026 (Igf Business Credit Limited).
Term ends Feb 2, 2036 · High confidence
Held by Portable Multimedia Ltd.
Filed Jun 7, 2019 as application 29/694,134 · Granted Feb 2, 2021
Base term, 15 years from grant
Today
2021
2036
Clock starts
Feb 2, 2021
Feb 2, 2021
Term ends
Feb 2, 2036
Feb 2, 2036
base term
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
15 years from grant
Base term
No maintenance fees are payable on this kind of patent.
This patent's term is its base term, 15 years from grant, with no adjustment for prosecution delay. No maintenance fees are payable on this kind of patent. 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, 15 years from grant | Granted Feb 2, 2021 | Feb 2, 2036 | 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 | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Computed term end | The steps above, in order | Feb 2, 2036 | High confidence |
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 |
|---|---|---|---|
| Nov 10, 2020 Reel 54327, frame 109 | Grant, Robert R; Lambert, Graham K; Hill, Ceri | Nextbase UK | Assignment of Assignor's Interest |
| Nov 10, 2020 Reel 54327, frame 399 | Nextbase UK | Portable Multimedia Ltd. | Assignment of Assignor's Interest |
| May 27, 2026 Reel 75653, frame 536 | Portable Multimedia Limited | Igf Business Credit Limited | Security Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center
No maintenance fees are payable on this kind of patent, so the record carries no fee events.
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Alerts on its grants, lapses and transfers.
What's changing
Feb 2036
Term ends Feb 2, 2036. No maintenance fees are payable on this kind of patent
Citations
24
later US patents cite this one
That is top 25% of design patents granted in 2021 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.