Term ends Jun 2, 2028 · Low confidence
20-year base term ends Jun 2, 2028
Reissue of US 9,907,971, which was surrendered when this reissue was granted; its term and maintenance fees continue here.
Held by Physio-Control, Inc.
Filed Jun 28, 2019 as application 16/457,681 · Granted Dec 26, 2023
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
Dec 26, 2023
Dec 26, 2023
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,339,661, to Jun 2, 2028. The term already ends on or before that date, so the cap shortened nothing.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from the original patent's grant (Mar 6, 2018). 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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are paid so far. 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 Jun 28, 2019) | Jun 2, 2028 | High confidence |
| Continuity chain | A reissue: its term follows the original patent's, with the original's term adjustment | follows the original patent | Medium confidence |
| Patent term adjustment | No term adjustment record on a grant after 2005, so none is added | no change | Medium confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,339,661) | resolves to Jun 2, 2028, no earlier than this term, so no change | 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 | Jun 2, 2028 | 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 | Surrendered on reissue no later than Dec 2023 | no later than Dec 2023 |
| US RE49,764 | this patent 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 18, 2019 Reel 49793, frame 149 | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Jun 2028
Term ends Jun 2, 2028. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,339,661, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2023 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.