Term ends Jun 25, 2030 · Medium confidence
20-year base term ends Jul 17, 2029
Why Medium: A parent in the chain could not be resolved.
Held by Consumer Safety Technology, LLC
Filed Aug 31, 2011 as application 13/221,995 · Granted Feb 17, 2015
Base term plus 343 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Jul 17, 2009
Jul 17, 2009
Term ends
Jun 25, 2030
Jun 25, 2030
Granted
Feb 17, 2015
Feb 17, 2015
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
343
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
This patent's term runs 343 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Jul 17, 2009, when application 12/504,714, the earliest non-provisional in its chain, was filed (this one was filed Aug 31, 2011); a parent in its chain could not be resolved (the next row) | Jul 17, 2029 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +343 days, USPTO patent term adjustment record | Jun 25, 2030 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 25, 2030 | Medium confidence |
This family
| US 7,934,577 | In force Jul 2029 | Jul 2029 |
| Application 12/973,550 | Abandoned not computed | not computed |
| US 8,957,771 | this patent Jun 2030 | Jun 2030 |
| Application 14/495,398 | Abandoned not computed | not computed |
| Application 15/498,916 | Abandoned 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 |
|---|---|---|---|
| Aug 31, 2011 Reel 26833, frame 989 | Arringdale, David L.; Walter, Michael W.; Devries, Douglas E. | Consumer Safety Technology, Inc. | Assignment of Assignor's Interest |
| Jun 15, 2012 Reel 28383, frame 151 | Consumer Safety Technology, LLC | Associated Bank, N.A., as Agent | Security Agreement |
| Jun 15, 2012 Reel 28386, frame 762 | Consumer Safety Technology, Inc. | Consumer Safety Technology, LLC | Merger |
| Mar 1, 2017 Reel 41424, frame 557 | Consumer Safety Technology, LLC | Ares Capital Corporation | Security Interest |
| Mar 1, 2017 Reel 41426, frame 23 | Associated Bank, N.a. | Consumer Safety Technology, LLC | Release of 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
Jun 2030
Term ends Jun 25, 2030. No further fees fall due before then
Note
The 343 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
110
later US patents cite this one
That is top 5% of utility patents granted in 2015 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.