Collateral for a security interest recorded Apr 14, 2025 (3I, L.P.).
Term ends Jun 18, 2041 · High confidence
20-year base term ends Jun 7, 2041
Held by Zspace, Inc.
Filed Jun 9, 2023 as application 18/207,998 · Granted Mar 18, 2025
Base term plus 11 days of patent term adjustment (USPTO delay)
Today
2021
2041
Clock starts
Jun 7, 2021
Jun 7, 2021
Term ends
Jun 18, 2041
Jun 18, 2041
Granted
Mar 18, 2025
Mar 18, 2025
base term
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
11
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,843,755, to Jun 18, 2041. The term already ends on or before that date, so the cap shortened nothing.
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 11 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jun 7, 2021, when application 17/340,901, the earliest non-provisional in its chain, was filed (this one was filed Jun 9, 2023) | Jun 7, 2041 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +11 days, USPTO patent term adjustment record | Jun 18, 2041 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,843,755) | resolves to Jun 18, 2041, no earlier than this term, so no change | 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 | Jun 18, 2041 | High confidence |
This family
| US 11,843,755 | In force Mar 2042 | Mar 2042 |
| US 12,192,434 | In force Jun 2041 | Jun 2041 |
| US 12,439,013 | In force Jul 2041 | Jul 2041 |
| US 12,256,053 | In force Jul 2041 | Jul 2041 |
| US 12,256,054 | In force Jul 2041 | Jul 2041 |
| US 12,256,052 | this patent Jun 2041 | Jun 2041 |
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 9, 2023 Reel 63911, frame 708 | Champion, Clifford S.; Hosenpud, Jonathan J.; Lu, Baifang; Shorey, Alex; Kalnins, Robert D. | Zspace, Inc. | Assignment of Assignor's Interest |
| Apr 14, 2025 Reel 70826, frame 887 | Zspace, Inc. | 3I, L.P. | Security Interest |
| Oct 15, 2026 Reel 76730, frame 227 | Zspace, Inc. | Vection Technologies Ltd. | 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
Jun 2041
Term ends Jun 18, 2041. Maintenance fees still fall due before then
Note
The 11 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,843,755, ends no earlier than this term, so it caps nothing.
Citations
0
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.