Collateral for a security interest recorded Nov 20, 2014 (Capital Royalty Partners II L.P.).
Lapsed Nov 12, 2025 on the fee record · High confidence
20-year base term ended Mar 13, 2026
Third maintenance fee unpaid; grace period ended.
Held by Neuropace, Inc.
Filed Jan 23, 2011 as application 13/011,917 · Granted Nov 12, 2013
Base term, 20 years from filing, plus 455 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 12, 2025
2006
2027
Clock starts
Mar 13, 2006
Mar 13, 2006
No longer in force
Nov 12, 2025
Nov 12, 2025
Granted
Nov 12, 2013
Nov 12, 2013
Term would have run to
Jun 11, 2027
Jun 11, 2027
base term
patent term adjustment
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
455
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.
5
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 Jun 11, 2027: its 20-year base term plus 455 days of term 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 Mar 13, 2006, when application 11/374,380, the earliest non-provisional in its chain, was filed (this one was filed Jan 23, 2011) | Mar 13, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +455 days, USPTO patent term adjustment record | Jun 11, 2027 | 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 | lapsed Nov 12, 2025 | High confidence |
| Computed term end | The steps above, in order | Nov 12, 2025 | High confidence |
This family
| US 7,894,905 | In force Sep 2029 | Sep 2029 |
| US 8,583,239 | this patent Nov 2025 | Nov 2025 |
| US 8,805,520 | Term ended Mar 2026 | Mar 2026 |
| US 9,114,260 | Term ended Mar 2026 | Mar 2026 |
| US 9,421,371 | Lapsed on the fee record Aug 2024 | Aug 2024 |
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 |
|---|---|---|---|
| Jan 23, 2011 Reel 25681, frame 455 | Pless, Benjamin D; John, Michael Sasha | Neuropace, Inc. | Assignment of Assignor's Interest |
| Nov 20, 2014 Reel 34410, frame 767 | Neuropace, Inc. | Capital Royalty Partners II L.P.; Capital Royalty Partners II - Parallel Fund "a" L.P.; Parallel Investment Opportunities Partners II L.P. | Short-Form Patent Security Agreement |
| Nov 20, 2014 reel/frame not recorded | Neuropace, Inc. | Capital Royalty Partners II L.P. | Short-Form Patent Security Agreement |
| Nov 20, 2014 reel/frame not recorded | Neuropace, Inc. | Capital Royalty Partners II - Parallel Fund "a" L.P. | Short-Form Patent Security Agreement |
| Nov 20, 2014 reel/frame not recorded | Neuropace, Inc. | Parallel Investment Opportunities Partners II L.P. | Short-Form Patent Security Agreement |
| Sep 25, 2020 Reel 53885, frame 932 | Neuropace, Inc. | CRG Servicing LLC | Security Interest |
| Jun 4, 2025 Reel 71495, frame 800 | CRG Servicing LLC as Successor to Capital Royalty Partners II L.P., Capital Royalty Partners II - Parallel Fund "a" L.P., and Parallel Investment Opportunities Partners II L.P. | Neuropace Inc. | Release of Security Interest |
| Jun 25, 2025 Reel 71712, frame 422 | Neuropace, Inc. | Midcap Funding IV Trust | 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
Note
The 455 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
52
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.