Collateral for a security interest recorded Sep 1, 2026 (Churchill Agency Services LLC).
Term ends Dec 27, 2041 · Low confidence
20-year base term ends Dec 27, 2041
Held by ResMed Halifax ULC
Filed Dec 20, 2022 as application 18/085,399 · Granted Dec 12, 2023
Base term, 20 years from filing
Today
2021
2041
Clock starts
Dec 27, 2021
Dec 27, 2021
Term ends
Dec 27, 2041
Dec 27, 2041
Granted
Dec 12, 2023
Dec 12, 2023
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,568,976, to Dec 27, 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.
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 is 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. 0 of 3 maintenance fees are paid so far. Confidence: Low. 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 27, 2021, when application 17/562,908, the earliest non-provisional in its chain, was filed (this one was filed Dec 20, 2022); a parent in its chain could not be resolved (the next row) | Dec 27, 2041 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,568,976) | resolves to Dec 27, 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 |
| Further caveats on record | The record names parents not resolved: 17562908 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Dec 27, 2041 | Low confidence |
This family
| US 11,568,976 | In force Dec 2041 | Dec 2041 |
| US 11,862,319 | In force Dec 2041 | Dec 2041 |
| US 11,842,807 | this patent Dec 2041 | Dec 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 |
|---|---|---|---|
| Sep 15, 2023 Reel 64919, frame 838 | Kadam, Kedar Mangesh | ResMed Halifax ULC | Assignment of Assignor's Interest |
| Sep 15, 2023 Reel 64921, frame 15 | Rockne, Jessica Wightman; Kumar, Vivek; Prajapati, Adhiraj Ganpat; Heeren, Timothy James; Gandhi, Nitin; Danielson, Coleen Patrice | Matrixcare, Inc. | Assignment of Assignor's Interest |
| Sep 1, 2026 Reel 76608, frame 83 | Matrixcare, Inc. | Churchill Agency Services LLC | Memorandum of Security Interest in Patents |
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 2041
Term ends Dec 27, 2041. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,568,976, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median 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.