Lapsed Dec 2, 2022 on the fee record · High confidence
20-year base term ends Apr 20, 2029
Second maintenance fee unpaid; grace period ended.
Held by Medtronic Monitoring, Inc.
Filed Mar 26, 2013 as application 13/850,678 · Granted Dec 2, 2014
Base term, 20 years from filing
Today
Lapsed Dec 2, 2022
2009
2029
Clock starts
Apr 20, 2009
Apr 20, 2009
No longer in force
Dec 2, 2022
Dec 2, 2022
Granted
Dec 2, 2014
Dec 2, 2014
Term would have run to
Apr 20, 2029
Apr 20, 2029
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
3
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Apr 20, 2029: its 20-year base term, with no adjustment for prosecution delay. 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 Apr 20, 2009, when application 12/426,497, the earliest non-provisional in its chain, was filed (this one was filed Mar 26, 2013) | Apr 20, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 3 maintenance fees paid | lapsed Dec 2, 2022 | High confidence |
| Computed term end | The steps above, in order | Dec 2, 2022 | High confidence |
This family
| US 8,412,317 | In force Nov 2030 | Nov 2030 |
| US 8,903,484 | this patent Dec 2022 | Dec 2022 |
| US 9,668,667 | In force Apr 2029 | Apr 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 |
|---|---|---|---|
| Mar 3, 2015 Reel 35078, frame 668 | Corventis, Inc.; Medtronic Corventis, Inc. | Medtronic Corventis, Inc. | Merger and Change of Name |
| Mar 3, 2015 Reel 35122, frame 99 | Medtronic Corventis, Inc. | Medtronic Monitoring, Inc. | 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.
Citations
242
later US patents cite this one
That is top 5% 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.