Also listed on Nellcor Puritan Bennett LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 26, 2026 · High confidence
20-year base term ended Aug 8, 2025
Held by Covidien LP
Filed Aug 8, 2005 as application 11/199,345 · Granted Feb 2, 2010
Base term plus 981 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2005
2026
Clock starts
Aug 8, 2005
Aug 8, 2005
Term ends
Nov 26, 2026
Nov 26, 2026
Granted
Feb 2, 2010
Feb 2, 2010
base term
patent term adjustment
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
981
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,574,244.
3 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 981 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 8, 2005, when this application, 11/199,345, was filed | Aug 8, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +981 days, USPTO patent term adjustment record | Apr 15, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,574,244) | capped to Nov 26, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 26, 2026 | High confidence |
This family
| US 7,657,294 | this patent Nov 2026 | Nov 2026 |
| US 7,574,244 | Lapsed on the fee record Aug 2017 | Aug 2017 |
| US 7,647,084 | In force Dec 2026 | Dec 2026 |
| Application PCT/US2006/030674 | PCT application no patent term | no patent term |
| US 8,311,602 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| US 8,991,034 | Lapsed on the fee record Mar 2023 | Mar 2023 |
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 |
|---|---|---|---|
| Aug 8, 2005 Reel 16872, frame 717 | Eghbal, Darius; Coakley, Joseph; Matlock, George L.; Raridan Jr., William | Nellcor Puritan Bennett Incorporated | Assignment of Assignor's Interest |
| Dec 2, 2009 Reel 23596, frame 298 | Nellcor Puritan Bennett Incorporated | Nellcor Puritan Bennett LLC | Change of Name |
| Nov 26, 2012 Reel 29346, frame 62 | Nellcor Puritan Bennett LLC | Covidien LP | 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
Nov 2026
Term ends Nov 26, 2026. No further fees fall due before then
Note
The 981 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,574,244.
Citations
77
later US patents cite this one
That is top 10% of utility patents granted in 2010 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.