Lapsed May 6, 2026 on the fee record · High confidence
20-year base term ends Mar 25, 2029
Third maintenance fee unpaid; grace period ended.
Held by Orthosoft, Inc.
Filed Aug 17, 2012 as application 13/588,543 · Granted May 6, 2014
Base term, 20 years from filing
Today
Lapsed May 6, 2026
2009
2029
Clock starts
Mar 25, 2009
Mar 25, 2009
No longer in force
May 6, 2026
May 6, 2026
Granted
May 6, 2014
May 6, 2014
Term would have run to
Mar 25, 2029
Mar 25, 2029
base term
after the term ends
fee events
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,265,790, to Mar 25, 2029. The term already ends on or before that date, so the cap shortened nothing.
2 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.
7
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Mar 25, 2029: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Mar 25, 2009, when application 12/410,884, the earliest non-provisional in its chain, was filed (this one was filed Aug 17, 2012) | Mar 25, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,265,790) | resolves to Mar 25, 2029, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed May 6, 2026 | High confidence |
| Computed term end | The steps above, in order | May 6, 2026 | High confidence |
This family
| US 8,265,790 | In force Jul 2031 | Jul 2031 |
| US 9,144,470 | In force Nov 2031 | Nov 2031 |
| US 8,718,820 | this patent May 2026 | May 2026 |
| US 9,495,509 | In force Mar 2030 | Mar 2030 |
| US 10,251,653 | In force Mar 2029 | Mar 2029 |
| US 11,224,443 | In force Mar 2029 | Mar 2029 |
| US 11,812,974 | In force Mar 2029 | Mar 2029 |
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 |
|---|---|---|---|
| Jan 16, 2013 Reel 29638, frame 976 | Amiot, Louis-philippe; Boutin, Yannick; Breton, Yonik; Duval, Karine; Jansen, Herbert Andre; Pelletier, Benoit; Proulx, Catherine; Richard, Alain; Valin, Myriam; Zuhars, Joel | Orthosoft, Inc. | Assignment of Assignor's Interest |
| Oct 22, 2019 Reel 50791, frame 237 | Orthosoft Inc. | Orthosoft ULC | Continuance |
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.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,265,790, ends no earlier than this term, so it caps nothing.
Citations
81
later US patents cite this one
That is top 10% of utility patents granted in 2014 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.