Term ends Dec 2, 2031 · High confidence
20-year base term ends May 8, 2028
Filed Jun 5, 2014 as application 14/297,088 · Granted Mar 5, 2019
Base term plus 1303 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
May 8, 2008
May 8, 2008
Term ends
Dec 2, 2031
Dec 2, 2031
Granted
Mar 5, 2019
Mar 5, 2019
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,303
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
2
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 1303 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 May 8, 2008, when application 12/117,596, the earliest non-provisional in its chain, was filed (this one was filed Jun 5, 2014) | May 8, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1303 days, USPTO patent term adjustment record | Dec 2, 2031 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 2, 2031 | High confidence |
This family
| US 8,771,269 | In force Aug 2032 | Aug 2032 |
| US 10,219,857 | this patent Dec 2031 | Dec 2031 |
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 |
|---|---|---|---|
| Jun 1, 2015 Reel 35753, frame 925 | Sherman, Marshall L.; Werneth, Randell L.; Flaherty, J. Christopher | Ablation Frontiers, Inc. | Assignment of Assignor's Interest |
| Jun 1, 2015 Reel 35753, frame 958 | Ablation Frontiers, Inc. | Medtronic Ablation Frontiers, Inc. | Assignment of Assignor's Interest |
| Jun 1, 2015 Reel 35754, frame 87 | Medtronic Ablation Frontiers, Inc. | Medtronic Ablation Frontiers Technologies, LLC | Assignment of Assignor's Interest |
| Jun 1, 2015 Reel 35754, frame 188 | Medtronic Ablation Frontiers Technologies, LLC | Medtronic Ablation Frontiers, LLC | Assignment of Assignor's Interest |
| Sep 14, 2015 Reel 36796, frame 328 | Medtronic Ablation Frontiers Technologies, LLC | Medtronic Ablation Frontiers LLC | Corrective Assignment to Correct the Receiving Party Previously Recorded at Reel: 035754 Frame: 0188. Assignor(S) Hereby Confirms the Assignment. |
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 2031
Term ends Dec 2, 2031. Maintenance fees still fall due before then
Note
The 1303 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
68
later US patents cite this one
That is top 5% of utility patents granted in 2019 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.