Also listed on Nellcor Puritan Bennett LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 16, 2026 · High confidence
20-year base term ended Mar 3, 2025
Held by Covidien LP
Filed Mar 3, 2005 as application 11/072,682 · Granted Jun 24, 2008
Base term plus 623 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Mar 3, 2005
Mar 3, 2005
Term ends
Nov 16, 2026
Nov 16, 2026
Granted
Jun 24, 2008
Jun 24, 2008
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
623
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
4
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 623 days past its 20-year base term on prosecution delay. 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 Mar 3, 2005, when this application, 11/072,682, was filed | Mar 3, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +623 days, USPTO patent term adjustment record | Nov 16, 2026 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 16, 2026 | High confidence |
This family
| US 7,392,075 | this patent Nov 2026 | Nov 2026 |
| US 8,423,109 | Lapsed on the fee record Apr 2025 | Apr 2025 |
| US 8,818,475 | Term ended Mar 2025 | Mar 2025 |
| US 9,351,674 | Term ended Mar 2025 | Mar 2025 |
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 |
|---|---|---|---|
| Jul 11, 2005 Reel 17338, frame 64 | Baker, Clark R., JR. | Nellcor Puritan Bennett Incorporated | Assignment of Assignor's Interest |
| Nov 5, 2012 Reel 29247, frame 329 | Nellcor Puritan Bennett Incorporated | Nellcor Puritan Bennett LLC | Change of Name |
| Nov 18, 2012 Reel 29317, frame 260 | 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 16, 2026. No further fees fall due before then
Note
The 623 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
49
later US patents cite this one
That is top 25% of utility patents granted in 2008 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.