Collateral for a security interest recorded Jul 27, 2026 (Golub Capital Markets LLC).
Term ends Dec 11, 2028 · High confidence
20-year base term ended Jan 13, 2025
Held by Avent, Inc.
Filed Jan 13, 2005 as application 11/036,514 · Granted Jul 12, 2011
Base term plus 1428 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Jan 13, 2005
Jan 13, 2005
Term ends
Dec 11, 2028
Dec 11, 2028
Granted
Jul 12, 2011
Jul 12, 2011
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
1,428
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.
14
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 1428 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 Jan 13, 2005, when this application, 11/036,514, was filed | Jan 13, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1428 days, USPTO patent term adjustment record | Dec 11, 2028 | 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 | Dec 11, 2028 | High confidence |
This family
| US 6,878,143 | Term ended no later than Jul 2020 | no later than Jul 2020 |
| Application 10/321,337 | Abandoned not computed | not computed |
| Application 60/599,895 | Provisional application no patent term | no patent term |
| US 7,976,518 | this patent Dec 2028 | Dec 2028 |
| US 7,066,914 | Term ended Jul 2020 | Jul 2020 |
| Application 11/188,447 | Abandoned not computed | not computed |
| Application 11/223,868 | Abandoned not computed | not computed |
| Application PCT/US2006/000381 | PCT application no patent term | no patent term |
8 of 14 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Mar 17, 2005 Reel 15921, frame 469 | Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M.l. | Corpak LLC D/B/A Viasys Medsystems | Assignment of Assignor's Interest |
| Sep 14, 2005 Reel 16790, frame 752 | Corpak LLC D/B/A Viasys Medsystems | Viasys Holdings Inc. | Assignment of Assignor's Interest |
| Sep 3, 2008 Reel 21462, frame 905 | Viasys Holdings, Inc. | Stackhouse, Inc. | Assignment of Assignor's Interest |
| Jan 27, 2009 Reel 22163, frame 599 | Stackhouse, Inc. | Corpak Medsystems, Inc. | Assignment of Assignor's Interest |
| Apr 12, 2013 Reel 30205, frame 821 | Corpak Medsystems, Inc. | Fifth Third Bank | Security Agreement |
| May 3, 2016 Reel 38445, frame 887 | Fifth Third Bank | Corpak Medsystems, Inc. | Release of Security Interest |
| Jun 6, 2017 Reel 42615, frame 531 | Corpak Medsystems, Inc. | Morgan Stanley Senior Funding, Inc. | Security Interest |
| Dec 21, 2017 Reel 44458, frame 194 | Corpak Medsystems, Inc. | Avent, Inc. | Assignment of Assignor's Interest |
| Jan 23, 2019 Reel 48173, frame 137 | Morgan Stanley Senior Funding, Inc. | Citibank, N.a. | Intellectual Property Security Interest Assignment Agreement |
| Jun 24, 2022 Reel 60441, frame 445 | Avent, Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Jun 30, 2022 Reel 60557, frame 62 | Citibank, N.a. | Avent, Inc.; Avanos Medical Sales, LLC | Release of Security Interest |
| Jun 30, 2022 reel/frame not recorded | Citibank, N.a. | Avent, Inc. | Release of Security Interest |
| Jun 30, 2022 reel/frame not recorded | Citibank, N.a. | Avanos Medical Sales, LLC | Release of Security Interest |
| Jul 27, 2026 Reel 76066, frame 888 | Avent, Inc. | Golub Capital Markets LLC, as Collateral Agent | Security Interest |
| Jul 28, 2026 Reel 76077, frame 108 | JPMorgan Chase Bank, N.A., as Administrative Agent | Avent, Inc.; Avanos Medical Sales, LLC | Release of 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
Dec 2028
Term ends Dec 11, 2028. No further fees fall due before then
Note
The 1428 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
186
later US patents cite this one
That is top 5% of utility patents granted in 2011 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.