Surrendered on reissue Dec 26, 2023 · Low confidence
20-year base term ends Jun 2, 2028
Surrendered on reissue Dec 26, 2023 · its term and maintenance fees continue in US RE49,764.
Held by Physio-Control, Inc.
Filed May 16, 2016 as application 15/156,258 · Granted Mar 6, 2018
Base term, 20 years from filing
Today
Surrendered Dec 26, 2023
2008
2028
Clock starts
Jun 2, 2008
Jun 2, 2008
No longer in force
Dec 26, 2023
Dec 26, 2023
Granted
Mar 6, 2018
Mar 6, 2018
Term would have run to
Jun 2, 2028
Jun 2, 2028
base term
after the term ends
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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
1 of 3
Maintenance fees paid
Fees paid on this patent before its reissue. Those after fall due on the reissue, which carries the term on.
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. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Low. 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 May 16, 2016) | 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 | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | no change | Low confidence |
| Reissue | US RE49,764 issued Dec 26, 2023, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Dec 26, 2023 | High confidence |
| Surrendered on reissue | The steps above, in order | Dec 26, 2023 | Low 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 | In force Jun 2028 | Jun 2028 |
| US 9,339,661 | In force Jun 2028 | Jun 2028 |
| US 9,907,971 | this patent 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 |
|---|---|---|---|
| Jul 25, 2016 Reel 39242, frame 504 | Nova, Richard C. | Physio-Control, 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
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 26, 2023. We will not guess the cap.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2018 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.