Term ended no later than Aug 29, 2026 · Medium confidence
20-year base term ended Aug 19, 2025
Held by Cannuflow, Inc.
Filed Oct 26, 2020 as application 17/080,680 · Granted Aug 22, 2023
Base term plus 375 days of patent term adjustment (USPTO delay)
Today
Ended no later than Aug 29, 2026
2005
2026
Clock starts
Aug 19, 2005
Aug 19, 2005
Ended no later than
Aug 29, 2026
Aug 29, 2026
Granted
Aug 22, 2023
Aug 22, 2023
base term
patent term adjustment
after the term ends
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
375
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
8
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 375 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 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 Aug 19, 2005, when application 11/213,645, the earliest non-provisional in its chain, was filed (this one was filed Oct 26, 2020) | Aug 19, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +375 days, USPTO patent term adjustment record | Aug 29, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | term ended | High confidence |
| Computed term end | The steps above, in order | no later than Aug 29, 2026 | Medium confidence |
This family
| US 7,575,565 | In force Aug 2027 | Aug 2027 |
| Application PCT/US2006/032281 | PCT application no patent term | no patent term |
| US 7,993,299 | Term ended Aug 2025 | Aug 2025 |
| Application 13/204,961 | Abandoned not computed | not computed |
| US 9,233,236 | Term ended May 2026 | May 2026 |
| US 10,070,881 | Term ended Oct 2026 | Oct 2026 |
| US 10,813,658 | Term ended Mar 2026 | Mar 2026 |
| US 11,730,350 | this patent no later than Aug 2026 | no later than Aug 2026 |
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 26, 2020 Reel 54170, frame 331 | 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
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 375 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Aug 29, 2026. We will not guess the cap.
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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.