Term ends Dec 21, 2038 · High confidence
20-year base term ends Dec 21, 2038
Held by Myant Inc.
Filed Sep 9, 2021 as application 17/470,670 · Granted Jan 28, 2025
Base term plus 624 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2018
2038
Clock starts
Dec 21, 2018
Dec 21, 2018
Term ends
Dec 21, 2038
Dec 21, 2038
Granted
Jan 28, 2025
Jan 28, 2025
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
624
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,121,515.
0 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.
6
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 624 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 3 maintenance fees are 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 Dec 21, 2018, when application PCT/CA2018/051654, the earliest non-provisional in its chain, was filed (this one was filed Sep 9, 2021) | Dec 21, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +624 days, USPTO patent term adjustment record | Sep 5, 2040 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,121,515) | capped to Dec 21, 2038 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 21, 2038 | High confidence |
This family
| US 11,121,515 | In force Dec 2038 | Dec 2038 |
| US 11,419,547 | In force Apr 2039 | Apr 2039 |
| US 12,212,105 | this patent Dec 2038 | Dec 2038 |
| US 11,896,394 | In force Dec 2038 | Dec 2038 |
| US 12,237,632 | In force Dec 2038 | Dec 2038 |
5 of 6 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 |
|---|---|---|---|
| Sep 9, 2021 Reel 57431, frame 491 | Chahine, Tony; Zheng, Michelle; Straka, Adrian Philip; Alizadeh-meghrazi, Milad | Myant Inc. | Assignment of Assignor's Interest |
| Dec 17, 2024 Reel 69607, frame 211 | Chahine, Tony; Zheng, Michelle; Straka, Adrian Philip; Alizadeh-meghrazi, Milad | Myant 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2038
Term ends Dec 21, 2038. Maintenance fees still fall due before then
Note
The 624 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,121,515.
Citations
2
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.