Also listed on Endoscopic Technologies, Inc. (Estech), an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 9, 2027 · High confidence
20-year base term ended Feb 25, 2025
Held by Endoscopic Technologies, LLC
Filed Feb 25, 2005 as application 11/067,535 · Granted Aug 31, 2010
Base term plus 714 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Feb 25, 2005
Feb 25, 2005
Term ends
Feb 9, 2027
Feb 9, 2027
Granted
Aug 31, 2010
Aug 31, 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
714
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.
This patent's term runs 714 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 Feb 25, 2005, when this application, 11/067,535, was filed | Feb 25, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +714 days, USPTO patent term adjustment record | Feb 9, 2027 | 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 | Feb 9, 2027 | High confidence |
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 |
|---|---|---|---|
| Feb 25, 2005 Reel 16336, frame 726 | Eberl, Greg | Boston Scientific Scimed, Inc. | Assignment of Assignor's Interest |
| Sep 23, 2009 Reel 23272, frame 272 | Boston Scientific Scimed, Inc. | Endoscopic Technologies, Inc. (Estech) | Assignment of Assignor's Interest |
| Dec 2, 2009 Reel 23586, frame 227 | Endoscopic Technologies, Inc. | Silicon Valley Bank | Security Agreement |
| Jan 3, 2012 Reel 27468, frame 759 | Endoscopic Technologies, Inc. | NXT Capital, LLC, Its Successors and Assigns | Security Agreement |
| Feb 29, 2012 Reel 27786, frame 529 | NXT Capital, LLC | NXT Capital SBIC, LP, Its Successors and Assigns | Assignment of Security Interest |
| Mar 27, 2013 Reel 30097, frame 652 | NXT Capital SBIC, LP | Endoscopic Technologies, Inc. | Release of Security Interest |
| Apr 1, 2013 Reel 30127, frame 554 | Silicon Valley Bank | Endoscopic Technologies, Inc. | Release of Security Interest |
| May 2, 2014 Reel 32812, frame 32 | Atricure, Inc.; Atricure, LLC; Endoscopic Technologies, LLC | Silicon Valley Bank | Security Interest |
| Mar 11, 2016 Reel 38315, frame 335 | Endoscopic Technologies, LLC | Atricure, Inc. | Assignment of Assignor's Interest |
| Apr 25, 2016 Reel 38520, frame 62 | Atricure, Inc.; Atricure, LLC; Endoscopic Technologies, LLC; Ncontact Surgical, LLC | Silicon Valley Bank | Second Amended and Restated Joint Intellectual Property Security Agreement |
| Dec 18, 2018 Reel 47951, frame 496 | Atricure, Inc.; Atricure, LLC; Endoscopic Technologies, LLC; Ncontact Surgical, LLC | Silicon Valley Bank | Security Interest |
| Jan 10, 2024 Reel 66256, frame 797 | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Atricure, Inc.; Atricure, LLC; Endoscopic Technologies, LLC; Ncontact Surgical, LLC; Sentreheart LLC | Release of Security Interest |
| Jan 10, 2024 Reel 66267, frame 896 | Atricure, Inc.; Atricure, LLC. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Jan 10, 2024 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Atricure, Inc. | Release of Security Interest |
| Jan 10, 2024 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Atricure, LLC | Release of Security Interest |
| Jan 10, 2024 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Endoscopic Technologies, LLC | Release of Security Interest |
| Jan 10, 2024 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Ncontact Surgical, LLC | Release of Security Interest |
| Jan 10, 2024 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Sentreheart LLC | Release of Security Interest |
| Jan 28, 2026 Reel 73620, frame 158 | Endoscopic Technologies, Inc.; Niners Merger Sub, LLC | Endoscopic Technologies, LLC | Merger and Change of Name |
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
Feb 2027
Term ends Feb 9, 2027. No further fees fall due before then
Note
The 714 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
60
later US patents cite this one
That is top 25% 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.