Also listed on Immedia Semiconductor LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 31, 2037 · Low confidence
20-year base term ends Mar 31, 2037
Grace period ended Oct 30, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected
Held by Amazon Technologies, Inc.
Filed Mar 31, 2017 as application 15/475,548 · Granted Oct 30, 2018
Base term, 20 years from filing
Today
2017
2037
Clock starts
Mar 31, 2017
Mar 31, 2017
Term ends
Mar 31, 2037
Mar 31, 2037
Granted
Oct 30, 2018
Oct 30, 2018
base term
fee events
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.
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.
2
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. 1 of 3 maintenance fees is paid so far. Confidence: Low: the grace period for its second maintenance fee ended Oct 30, 2026 with no payment on record. 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 Mar 31, 2017, when this application, 15/475,548, was filed | Mar 31, 2037 | 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 |
| Fee events | The grace period ended with no payment on record in the fee file | grace period ended Oct 30, 2026 | Low confidence |
| Computed term end | The steps above, in order | Mar 31, 2037 | Low confidence |
This family
| US 10,115,278 | this patent Mar 2037 | Mar 2037 |
| Application PCT/US2018/024609 | PCT application no patent term | no patent term |
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 14, 2017 Reel 42701, frame 711 | Gordon, Stephen E.; Besen, Peter D.; Gorfajn, Julian I. | Immedia Semiconductor, Inc. | Assignment of Assignor's Interest |
| Jan 9, 2018 Reel 44776, frame 968 | Immedia Semiconductor, Inc. | Immedia Semiconductor LLC | Change of Name |
| Jan 12, 2018 Reel 44610, frame 809 | Immedia Semiconductor LLC | A9.com, Inc. | Assignment of Assignor's Interest |
| Oct 13, 2024 Reel 69167, frame 493 | A9.com, Inc. | Amazon Technologies, Inc. | Assignment of Assignor's 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
Oct 30
Grace period ended Oct 30, 2026 with no payment on record. The term ends early once USPTO posts the lapse
Mar 2037
Term ends Mar 31, 2037.
Citations
7
later US patents cite this one
That is above the median 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.