Term ends May 2, 2030 · Medium confidence
20-year base term ends Jun 23, 2029
Why Medium: A parent in the chain could not be resolved.
Held by Atricure, Inc.
Filed Jun 2, 2011 as application 13/151,403 · Granted Aug 26, 2014
Base term plus 313 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Jun 23, 2009
Jun 23, 2009
Term ends
May 2, 2030
May 2, 2030
Granted
Aug 26, 2014
Aug 26, 2014
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
313
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.
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 313 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Jun 23, 2009, when application 12/456,855, the earliest non-provisional in its chain, was filed (this one was filed Jun 2, 2011); a parent in its chain could not be resolved (the next row) | Jun 23, 2029 | 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 | +313 days, USPTO patent term adjustment record | May 2, 2030 | 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 | May 2, 2030 | Medium confidence |
This family
| Application 12/456,855 | Abandoned not computed | not computed |
| US 8,814,778 | this patent May 2030 | May 2030 |
| US 9,463,024 | In force Jun 2029 | Jun 2029 |
| US 10,278,704 | In force Jun 2029 | Jun 2029 |
| US 11,751,879 | In force Jun 2029 | Jun 2029 |
| US 12,161,342 | In force Jun 2029 | Jun 2029 |
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 |
|---|---|---|---|
| Oct 24, 2011 Reel 27105, frame 975 | Kiser, Andy Christopher; Landers, Mark Douglas | KL Medical LLC | Assignment of Assignor's Interest |
| Jan 30, 2012 Reel 27617, frame 449 | KL Medical LLC | Estech, Inc. (Endoscopic Technologies, 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 |
| Mar 5, 2026 Reel 73988, frame 670 | Endoscopic Technologies, Inc. | Atricure, Inc. | Merger |
| Mar 5, 2026 Reel 75048, frame 666 | Estech, Inc. (Endoscopic Technologies, Inc.) | Endoscopic Technologies, Inc. | Change of Name |
| Mar 17, 2026 Reel 75891, frame 585 | Endoscopic Technologies, Inc. | Endoscopic Technologies, LLC | Corrective Assignment to Correct the Assignee Previously Recorded on Reel 73988 Frame 670. Assignor(S) Hereby Confirms the Merger. |
| Mar 17, 2026 Reel 74104, frame 407 | Endoscopic Technologies, LLC | Atricure, Inc. | Assignment of Assignor's Interest |
| May 1, 2026 Reel 74545, frame 860 | Endoscopic Technologies, LLC | Atricure, Inc. | 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
May 2030
Term ends May 2, 2030. No further fees fall due before then
Note
The 313 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
85
later US patents cite this one
That is top 10% of utility patents granted in 2014 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.