Lapsed Mar 31, 2023 on the fee record · High confidence
20-year base term ends Feb 21, 2032
Second maintenance fee unpaid; grace period ended.
Filed Feb 21, 2012 as application 13/401,336 · Granted Mar 31, 2015
Base term, 20 years from filing, plus 200 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 31, 2023
2012
2032
Clock starts
Feb 21, 2012
Feb 21, 2012
No longer in force
Mar 31, 2023
Mar 31, 2023
Granted
Mar 31, 2015
Mar 31, 2015
Term would have run to
Sep 8, 2032
Sep 8, 2032
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
200
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.
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 Sep 8, 2032: its 20-year base term plus 200 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 21, 2012, when this application, 13/401,336, was filed | Feb 21, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +200 days, USPTO patent term adjustment record | Sep 8, 2032 | 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 | lapsed Mar 31, 2023 | High confidence |
| Computed term end | The steps above, in order | Mar 31, 2023 | High confidence |
This family
| US 8,993,488 | this patent Mar 2023 | Mar 2023 |
| Application PCT/US2012/026172 | PCT application no patent term | no patent term |
| US 9,920,236 | In force Sep 2032 | Sep 2032 |
| US 10,526,527 | In force Feb 2032 | Feb 2032 |
| US 11,236,262 | In force Feb 2032 | Feb 2032 |
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 |
|---|---|---|---|
| May 15, 2012 Reel 28210, frame 389 | Matza, Stephen D.; Smith, Martha T.; Frost, Jack G. | United Laboratories International, LLC | Assignment of Assignor's Interest |
| Oct 2, 2013 Reel 31327, frame 650 | United Laboratories International, LLC | Texas Capital Bank, National Association | Security Agreement |
| Jan 5, 2015 Reel 34631, frame 429 | United Laboratories International, LLC; Global Vapor Control, Inc. | Abacus Finance Group, LLC, as Agent | Security Interest |
| Jan 5, 2015 Reel 34634, frame 719 | Texas Capital Bank, National Association | United Laboratories International, LLC | Release of Security Interest |
| Sep 8, 2023 Reel 64839, frame 568 | Abacus Finance Group LLC | United Laboratories International LLC | 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.
What's changing
Note
The 200 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
37
later US patents cite this one
That is top 25% 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.