Lapsed Feb 22, 2026 on the fee record · High confidence
20-year base term ends Feb 13, 2038
First maintenance fee unpaid; grace period ended.
Held by NCS Multistage Inc.
Filed Oct 8, 2019 as application 16/485,485 · Granted Feb 22, 2022
Base term, 20 years from filing, plus 198 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 22, 2026
2018
2038
Clock starts
Feb 13, 2018
Feb 13, 2018
No longer in force
Feb 22, 2026
Feb 22, 2026
Granted
Feb 22, 2022
Feb 22, 2022
Term would have run to
Aug 30, 2038
Aug 30, 2038
base term
patent term adjustment
after the term ends
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
198
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
20
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 Aug 30, 2038: its 20-year base term plus 198 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 Feb 13, 2018, when application PCT/CA2018/050160, the earliest non-provisional in its chain, was filed (this one was filed Oct 8, 2019) | Feb 13, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +198 days, USPTO patent term adjustment record | Aug 30, 2038 | 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 | 0 of 3 maintenance fees paid | lapsed Feb 22, 2026 | High confidence |
| Computed term end | The steps above, in order | Feb 22, 2026 | High confidence |
This family
| US 10,458,195 | In force May 2037 | May 2037 |
| Application 15/837,648 | Abandoned not computed | not computed |
| US 11,434,735 | In force Jan 2039 | Jan 2039 |
| US 11,168,527 | In force May 2037 | May 2037 |
| US 11,255,169 | this patent Feb 2026 | Feb 2026 |
| US 11,261,715 | In force Aug 2040 | Aug 2040 |
| US 11,808,099 | In force May 2037 | May 2037 |
| US 11,732,559 | In force Apr 2040 | Apr 2040 |
8 of 20 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Aug 17, 2020 Reel 53520, frame 64 | NCS Multistage Holdings, Inc.; NCS Multistage Inc. | Wells Fargo Bank National Association | Security Interest |
| Sep 14, 2021 Reel 57476, frame 587 | Tajallipour, Ramin, MR; Laun, Lyle, MR; Werries, Michael, MR; Vakulin, Roman, MR | NCS Multistage Inc. | Assignment of Assignor's Interest |
| Jul 28, 2022 Reel 61002, frame 587 | Wells Fargo Bank, National Association | NCS Multistage, LLC; NCS Multistage Inc. | Release of Lien - Patent and Trademark |
| Jul 28, 2022 Reel 61002, frame 734 | NCS Multistage, LLC; NCS Multistage Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Patent Security Agreement |
| Jul 28, 2022 reel/frame not recorded | Wells Fargo Bank, National Association | NCS Multistage, LLC | Release of Lien - Patent and Trademark |
| Jul 28, 2022 reel/frame not recorded | Wells Fargo Bank, National Association | NCS Multistage Inc. | Release of Lien - Patent and Trademark |
| Sep 1, 2026 Reel 76317, frame 191 | JPMorgan Chase Bank, N.A., as Administrative Agent | NCS Multistage, LLC; NCS Multistage Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | NCS Multistage, LLC | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | NCS Multistage 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
Note
The 198 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
12
later US patents cite this one
That is top 10% of utility patents granted in 2022 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.