Also listed on Simplex Designs, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 30, 2044 · High confidence
20-year base term ends Sep 29, 2043
Held by DePuy Ireland Unlimited Company
Filed Sep 29, 2023 as application 18/374,737 · Granted Dec 30, 2025
Base term plus 214 days of patent term adjustment (USPTO delay)
Today
2023
2044
Clock starts
Sep 29, 2023
Sep 29, 2023
Term ends
Apr 30, 2044
Apr 30, 2044
Granted
Dec 30, 2025
Dec 30, 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
214
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.
This patent's term runs 214 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 Sep 29, 2023, when this application, 18/374,737, was filed | Sep 29, 2043 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +214 days, USPTO patent term adjustment record | Apr 30, 2044 | 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 | Apr 30, 2044 | High confidence |
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 13, 2024 Reel 66749, frame 121 | Rivera, Jose S., JR. | Simplex Designs, LLC | Assignment of Assignor's Interest |
| Feb 7, 2025 Reel 70142, frame 549 | Simplex Designs, LLC | DePuy Synthes Products, Inc. | Assignment of Assignor's Interest |
| Mar 26, 2025 Reel 70634, frame 990 | DePuy Synthes Products, Inc. | DePuy Ireland Unlimited Company | 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
Apr 2044
Term ends Apr 30, 2044. Maintenance fees still fall due before then
Note
The 214 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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.