Term ends Apr 5, 2037 · High confidence
20-year base term ends Sep 9, 2036
Held by Consumer Safety Technology, LLC
Filed Sep 9, 2016 as application 15/261,253 · Granted May 26, 2020
Base term plus 208 days of patent term adjustment (USPTO delay)
Today
2016
2037
Clock starts
Sep 9, 2016
Sep 9, 2016
Term ends
Apr 5, 2037
Apr 5, 2037
Granted
May 26, 2020
May 26, 2020
base term
patent term adjustment
fee events
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
208
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
6
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 runs 208 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. 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 Sep 9, 2016, when this application, 15/261,253, was filed | Sep 9, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +208 days, USPTO patent term adjustment record | Apr 5, 2037 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 5, 2037 | High confidence |
This family
| US 10,663,440 | this patent Apr 2037 | Apr 2037 |
| US 10,948,468 | In force Sep 2036 | Sep 2036 |
| US 11,415,564 | In force Sep 2036 | Sep 2036 |
| US 11,971,395 | In force Sep 2036 | Sep 2036 |
| US 12,339,263 | In force Sep 2036 | Sep 2036 |
| Application 19/219,361 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Feb 9, 2017 Reel 41218, frame 851 | Devries, Douglas Edward; Ruland, Scott | Consumer Safety Technology, LLC | Assignment of Assignor's Interest |
| Mar 1, 2017 Reel 41424, frame 557 | Consumer Safety Technology, LLC | Ares Capital Corporation | Security Interest |
| Oct 4, 2019 Reel 50628, frame 935 | Consumer Safety Technology, LLC | Ares Capital Corporation | Security Interest |
| Nov 1, 2022 Reel 61617, frame 407 | Consumer Safety Technology, LLC; Alcohol Detection Systems Technology, LLC | Ares Capital Corporation | Security Interest |
| Nov 1, 2022 Reel 61830, frame 690 | Ares Capital Corporation | Consumer Safety Technology, LLC | Release of Security Interest at Reel/Frame No. 50628/0935 |
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
Apr 2037
Term ends Apr 5, 2037. Maintenance fees still fall due before then
Note
The 208 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
39
later US patents cite this one
That is top 5% of utility patents granted in 2020 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.