Term ends Mar 14, 2033 · High confidence
20-year base term ends Mar 14, 2033
Held by Coskata, LLC
Filed Mar 14, 2013 as application 13/802,905 · Granted May 16, 2017
Base term, 20 years from filing
Today
2013
2033
Clock starts
Mar 14, 2013
Mar 14, 2013
Term ends
Mar 14, 2033
Mar 14, 2033
Granted
May 16, 2017
May 16, 2017
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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.
This patent's term is its 20-year base term, with no adjustment for 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 Mar 14, 2013, when this application, 13/802,905, was filed | Mar 14, 2033 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Mar 14, 2033 | High confidence |
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 |
|---|---|---|---|
| Mar 19, 2014 Reel 32477, frame 549 | Datta, Rathin; Enzien, Michael; Hickey, Robert; Levinson, William | Total Research & Technology Feluy; Coskata Inc. | Assignment of Assignor's Interest |
| Mar 19, 2014 reel/frame not recorded | Datta, Rathin; Levinson, William; Enzien, Michael; Hickey, Robert | Total Research & Technology Feluy | Assignment of Assignor's Interest |
| Mar 19, 2014 reel/frame not recorded | Datta, Rathin; Levinson, William; Enzien, Michael; Hickey, Robert | Coskata Inc. | Assignment of Assignor's Interest |
| Oct 23, 2015 Reel 36933, frame 596 | Coskata, Inc. | Vinod Khosla and Neeru Khosla, Trustees of the KFT Trust Dated November 17, 1986; Khosla Ventures III, LP; Advanced Technology Ventures VII, L.P.; Advanced Technology Ventures VII (B), L.P.; Advanced Technology Ventures VII (C), L.P.; Atv Entrepreneurs VII, LP | Security Interest |
| Oct 23, 2015 reel/frame not recorded | Coskata, Inc. | Vinod Khosla and Neeru Khosla, Trustees of the KFT Trust Dated November 17, 1986 | Security Interest |
| Oct 23, 2015 reel/frame not recorded | Coskata, Inc. | Khosla Ventures III, LP | Security Interest |
| Oct 23, 2015 reel/frame not recorded | Coskata, Inc. | Advanced Technology Ventures VII, L.P. | Security Interest |
| Oct 23, 2015 reel/frame not recorded | Coskata, Inc. | Advanced Technology Ventures VII (B), L.P. | Security Interest |
| Oct 23, 2015 reel/frame not recorded | Coskata, Inc. | Advanced Technology Ventures VII (C), L.P. | Security Interest |
| Oct 23, 2015 reel/frame not recorded | Coskata, Inc. | Atv Entrepreneurs VII, LP | Security Interest |
| Nov 23, 2015 Reel 37153, frame 659 | Vinod Khosla and Neeru Khosla, Trustees of the KFT Trust Dated November 17, 1986; Khosla Ventures III, LP; Advanced Technology Ventures VII, L.P.; Advanced Technology Ventures VII (B), L.P.; Advanced Technology Ventures VII (C), L.P.; Atv Entrepreneurs VII, LP | Coskata, Inc. | Release of Security Interest |
| May 16, 2016 Reel 38709, frame 722 | Coskata, Inc. | Synata Bio, Inc. | Assignment of Assignor's Interest |
| Apr 11, 2017 Reel 42872, frame 67 | Coskata, Inc. | Coskata, LLC | Assignment of Assignor's Interest |
| Oct 30, 2017 Reel 44310, frame 659 | Coskata, LLC | Synata Bio, Inc. | Corrective Assignment to Correct the Assignor Previously Recorded on Reel 038709 Frame 0722. Assignor(S) Hereby Confirms the Assignment. |
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.
What's changing
Mar 2033
Term ends Mar 14, 2033. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
That is below the median 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.