Term ends Sep 11, 2034 · High confidence
20-year base term ends May 19, 2034
Held by Carbon Engineering ULC
Filed May 19, 2014 as application 14/281,430 · Granted May 2, 2017
Base term plus 115 days of patent term adjustment (USPTO delay)
Today
2014
2034
Clock starts
May 19, 2014
May 19, 2014
Term ends
Sep 11, 2034
Sep 11, 2034
Granted
May 2, 2017
May 2, 2017
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
115
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
7
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 115 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 May 19, 2014, when this application, 14/281,430, was filed | May 19, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +115 days, USPTO patent term adjustment record | Sep 11, 2034 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Sep 11, 2034 | High confidence |
This family
| US 9,637,393 | this patent Sep 2034 | Sep 2034 |
| US 10,519,041 | In force May 2034 | May 2034 |
| US 11,014,823 | In force May 2034 | May 2034 |
| US 11,667,538 | In force May 2034 | May 2034 |
| US 12,054,399 | In force May 2034 | May 2034 |
| US 12,583,756 | In force no later than May 2034 | no later than May 2034 |
| Application 19/555,576 | Pending 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 |
|---|---|---|---|
| Jun 25, 2014 Reel 33177, frame 646 | Vollendorf, Nicholas; Fessler, Eric | Procorp Enterprises LLC | Assignment of Assignor's Interest |
| Jun 25, 2014 Reel 33177, frame 792 | Heidel, Kenton Robert; Keith, David William; Ritchie, Jane Anne | Carbon Engineering Limited Partnership | Assignment of Assignor's Interest |
| Jun 25, 2014 Reel 33177, frame 867 | Procorp Enterprises LLC | Carbon Engineering Limited Partnership | Assignment of Assignor's Interest |
| Feb 28, 2018 Reel 45062, frame 77 | Carbon Engineering Limited Partnership | Carbon Engineering Ltd. | Assignment of Assignor's Interest |
| Feb 28, 2024 Reel 66593, frame 551 | Carbon Engineering Ltd. | Carbon Engineering ULC | Change of Name |
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
Sep 2034
Term ends Sep 11, 2034. Maintenance fees still fall due before then
Note
The 115 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
26
later US patents cite this one
That is top 25% of utility patents granted in 2017 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.