Term ends Jan 14, 2035 · Medium confidence
20-year base term ends Dec 12, 2034
Why Medium: A parent in the chain could not be resolved.
Held by AliveCor, Inc.
Filed Nov 9, 2018 as application 16/186,244 · Granted Oct 28, 2025
Base term plus 33 days of patent term adjustment (USPTO delay)
Today
2014
2035
Clock starts
Dec 12, 2014
Dec 12, 2014
Term ends
Jan 14, 2035
Jan 14, 2035
Granted
Oct 28, 2025
Oct 28, 2025
base term
patent term adjustment
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
33
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
15
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 33 days past its 20-year base term on prosecution delay. 0 of 2 maintenance fees are 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 Dec 12, 2014, when application 14/569,513, the earliest non-provisional in its chain, was filed (this one was filed Nov 9, 2018); a parent in its chain could not be resolved (the next row) | Dec 12, 2034 | 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 | +33 days, USPTO patent term adjustment record | Jan 14, 2035 | 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 | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 14, 2035 | Medium confidence |
This family
| US 9,420,956 | In force Dec 2034 | Dec 2034 |
| US 9,572,499 | In force no later than Dec 2034 | no later than Dec 2034 |
| US 10,159,415 | In force Dec 2034 | Dec 2034 |
| US 10,561,321 | In force Dec 2034 | Dec 2034 |
| Application 16/153,403 | Abandoned not computed | not computed |
| US 10,426,359 | In force Dec 2034 | Dec 2034 |
| US 12,453,482 | this patent Jan 2035 | Jan 2035 |
| US 11,877,830 | In force Jun 2039 | Jun 2039 |
8 of 15 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 |
|---|---|---|---|
| Jun 24, 2026 Reel 75813, frame 343 | Alivecor, Inc. | Symbiotic Capital Agency LLC, as Administrative and Collateral Agent | 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
Jan 2035
Term ends Jan 14, 2035. Maintenance fees still fall due before then
Note
The 33 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.