Term ends Jan 29, 2035 · Medium confidence
20-year base term ends Mar 10, 2034
Why Medium: A parent in the chain could not be resolved.
Held by Cannuflow, Inc.
Filed Oct 27, 2020 as application 17/081,259 · Granted Mar 7, 2023
Base term plus 325 days of patent term adjustment (USPTO delay)
Today
2014
2035
Clock starts
Mar 10, 2014
Mar 10, 2014
Term ends
Jan 29, 2035
Jan 29, 2035
Granted
Mar 7, 2023
Mar 7, 2023
base term
patent term adjustment
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
325
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 325 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. 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 Mar 10, 2014, when application 14/203,445, the earliest non-provisional in its chain, was filed (this one was filed Oct 27, 2020); a parent in its chain could not be resolved (the next row) | Mar 10, 2034 | 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 | +325 days, USPTO patent term adjustment record | Jan 29, 2035 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 29, 2035 | Medium confidence |
This family
| US 9,675,379 | In force Aug 2034 | Aug 2034 |
| US 10,085,768 | In force Mar 2034 | Mar 2034 |
| US 10,813,666 | In force Mar 2034 | Mar 2034 |
| US 11,596,440 | this patent Jan 2035 | Jan 2035 |
| US 12,121,262 | In force Apr 2034 | Apr 2034 |
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 27, 2020 Reel 54181, frame 123 | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jan 2035
Term ends Jan 29, 2035. Maintenance fees still fall due before then
Note
The 325 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2023 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.