Term ends Feb 20, 2041 · High confidence
20-year base term ends Dec 22, 2037
Held by Igus SE & Co. KG
Filed Jun 21, 2019 as application 16/472,588 · Granted Nov 21, 2023
Base term plus 1156 days of patent term adjustment (USPTO delay)
Today
2017
2041
Clock starts
Dec 22, 2017
Dec 22, 2017
Term ends
Feb 20, 2041
Feb 20, 2041
Granted
Nov 21, 2023
Nov 21, 2023
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
1,156
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 1156 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 Dec 22, 2017, when application PCT/EP2017/084570, the earliest non-provisional in its chain, was filed (this one was filed Jun 21, 2019) | Dec 22, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1156 days, USPTO patent term adjustment record | Feb 20, 2041 | 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 | Feb 20, 2041 | High confidence |
This family
| US 11,824,333 | this patent Feb 2041 | Feb 2041 |
| US 12,731,973 | In force Aug 2038 | Aug 2038 |
2 of 3 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 |
|---|---|---|---|
| Mar 11, 2020 Reel 52086, frame 312 | Hermey, Andreas; Jaeker, Thilo-alexander; Barten, Dominik; Habering, Richard; Schmer, Konstantin | Igus GmbH | Assignment of Assignor's Interest |
| Apr 7, 2026 Reel 74695, frame 185 | Igus GmbH | Igus SE & Co. KG | Change of Name |
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
Feb 2041
Term ends Feb 20, 2041. Maintenance fees still fall due before then
Note
The 1156 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is top 25% of utility patents granted in 2023 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.