Lapsed Feb 11, 2026 on the fee record · High confidence
20-year base term ended Oct 24, 2026
Third maintenance fee unpaid; grace period ended.
Held by Cannuflow, Inc.
Filed Jan 22, 2013 as application 13/746,659 · Granted Feb 11, 2014
Base term, 20 years from filing
Today
Lapsed Feb 11, 2026
2006
2026
Clock starts
Oct 24, 2006
Oct 24, 2006
No longer in force
Feb 11, 2026
Feb 11, 2026
Granted
Feb 11, 2014
Feb 11, 2014
Term would have run to
Oct 24, 2026
Oct 24, 2026
base term
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
None
Term adjustment
No prosecution delay on this record.
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 Oct 24, 2026: its 20-year base term, with no 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 Oct 24, 2006, when application 11/585,716, the earliest non-provisional in its chain, was filed (this one was filed Jan 22, 2013) | Oct 24, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 Feb 11, 2026 | High confidence |
| Computed term end | The steps above, in order | Feb 11, 2026 | High confidence |
This family
| US 8,357,126 | In force Oct 2029 | Oct 2029 |
| Application PCT/US2007/082005 | PCT application no patent term | no patent term |
| US 8,647,322 | this patent Feb 2026 | Feb 2026 |
| US 10,456,510 | Term ended Oct 2026 | Oct 2026 |
| Application 16/666,120 | 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 |
|---|---|---|---|
| Oct 9, 2013 Reel 31370, frame 959 | Kucklick, Theodore R. | Cannuflow, Inc. | Assignment of Assignor's 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.
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Alerts on its grants, lapses and transfers.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2014 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.