Term ends Jun 2, 2028 · High confidence
20-year base term ends Jun 2, 2028
Held by Physio-Control, Inc.
Filed Apr 12, 2012 as application 13/445,776 · Granted Apr 14, 2015
Base term, 20 years from filing
Today
2008
2028
Clock starts
Jun 2, 2008
Jun 2, 2008
Term ends
Jun 2, 2028
Jun 2, 2028
Granted
Apr 14, 2015
Apr 14, 2015
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
8
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 is its 20-year base term, with no adjustment for 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 Jun 2, 2008, when application 12/131,267, the earliest non-provisional in its chain, was filed (this one was filed Apr 12, 2012) | Jun 2, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 2, 2028 | High confidence |
This family
| US 7,728,548 | In force Nov 2028 | Nov 2028 |
| Application PCT/US2009/045943 | PCT application no patent term | no patent term |
| US 8,183,823 | In force Mar 2029 | Mar 2029 |
| US 8,179,087 | In force Mar 2029 | Mar 2029 |
| US 9,008,766 | this patent Jun 2028 | Jun 2028 |
| US 9,339,661 | In force Jun 2028 | Jun 2028 |
| US 9,907,971 | Surrendered on reissue no later than Dec 2023 | no later than Dec 2023 |
| US RE49,764 | In force Jun 2028 | Jun 2028 |
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 |
|---|---|---|---|
| Apr 12, 2012 Reel 28038, frame 799 | Nova, Richard C. | Physio-Control, Inc. | Assignment of Assignor's Interest |
| Jan 15, 2016 Reel 37532, frame 828 | Physio-Control, Inc.; Physio-Control International, Inc. | Citibank, N.A., as Collateral Agent | First Lien Security Agreement |
| Jan 19, 2016 Reel 37559, frame 601 | Physio-Control, Inc.; Physio-Control International, Inc. | Citibank, N.A., as Collateral Agent | Second Lien Security Agreement |
| Jan 20, 2016 Reel 37564, frame 902 | Physio-Control, Inc.; Physio-Control International, Inc. | Citibank, N.A., as Collateral Agent | Abl Security Agreement |
| Apr 7, 2016 Reel 38379, frame 1 | Citibank, N.a. | Physio-Control, Inc.; Physio-Control International, Inc. | Release of Security Interest |
| Apr 7, 2016 reel/frame not recorded | Citibank, N.a. | Physio-Control, Inc. | Release of Security Interest |
| Apr 7, 2016 reel/frame not recorded | Citibank, N.a. | Physio-Control International, Inc. | 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
Jun 2028
Term ends Jun 2, 2028. No further fees fall due before then
Citations
15
later US patents cite this one
That is above the median of utility patents granted in 2015 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.