Term ends Dec 18, 2039 · High confidence
20-year base term ends Nov 27, 2037
Held by PGS Geophysical AS
Filed Oct 12, 2020 as application 17/068,648 · Granted Jan 16, 2024
Base term plus 751 days of patent term adjustment (USPTO delay)
Today
2017
2039
Clock starts
Nov 27, 2017
Nov 27, 2017
Term ends
Dec 18, 2039
Dec 18, 2039
Granted
Jan 16, 2024
Jan 16, 2024
base term
patent term adjustment
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
751
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 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 runs 751 days past its 20-year base term on prosecution delay. 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 Nov 27, 2017, when application 15/823,221, the earliest non-provisional in its chain, was filed (this one was filed Oct 12, 2020) | Nov 27, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +751 days, USPTO patent term adjustment record | Dec 18, 2039 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 18, 2039 | High confidence |
This family
| Application 62/434,222 | Provisional application no patent term | no patent term |
| US 10,871,588 | In force Sep 2038 | Sep 2038 |
| US 11,874,421 | this patent Dec 2039 | Dec 2039 |
The applications whose file history this site holds. The family may have others.
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 2039
Term ends Dec 18, 2039. Maintenance fees still fall due before then
Note
The 751 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
Fewer than half of the utility patents granted in 2024 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.