Collateral for a security interest recorded Oct 18, 2021 (Goldman Sachs Bank USA).
Term ends Apr 13, 2037 · High confidence
20-year base term ends Apr 13, 2037
Held by Mitchell International Inc.
Filed Apr 13, 2017 as application 15/487,379 · Granted Dec 11, 2018
Base term, 20 years from filing
Today
2017
2037
Clock starts
Apr 13, 2017
Apr 13, 2017
Term ends
Apr 13, 2037
Apr 13, 2037
Granted
Dec 11, 2018
Dec 11, 2018
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.
44
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 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 Apr 13, 2017, when this application, 15/487,379, was filed | Apr 13, 2037 | 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 | Apr 13, 2037 | High confidence |
This family
| US 10,152,836 | this patent Apr 2037 | Apr 2037 |
| Application PCT/US2017/028341 | PCT application no patent term | no patent term |
| US 11,151,812 | In force Nov 2037 | Nov 2037 |
| Application 16/162,029 | Abandoned not computed | not computed |
| Application 16/520,026 | Abandoned not computed | not computed |
| US 12,026,679 | In force Jan 2041 | Jan 2041 |
| Application 62/908,354 | Provisional application no patent term | no patent term |
| US 11,462,061 | In force Feb 2038 | Feb 2038 |
8 of 44 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| May 4, 2017 Reel 42247, frame 162 | Rozint, John Joseph | Rozint Enterprises, Inc. | Assignment of Assignor's Interest |
| Oct 18, 2017 Reel 43898, frame 577 | Rozint Enterprises, Inc. | Mitchell International Inc. | Assignment of Assignor's Interest |
| Dec 8, 2017 Reel 44760, frame 975 | Mitchell International, Inc. | Jefferies Finance LLC, as Collateral Agent | First Lien Security Agreement |
| Dec 11, 2017 Reel 44823, frame 678 | Mitchell International, Inc. | Jefferies Finance LLC, as Collateral Agent | Second Lien Security Agreement |
| Oct 18, 2021 Reel 57841, frame 875 | Jefferies Finance LLC | Mitchell International, Inc. | Release of First Lien Security Interest (REEL 044760/0975) |
| Oct 18, 2021 Reel 57841, frame 921 | Jefferies Finance LLC | Mitchell International, Inc. | Release of Second Lien Security Interest (REEL 044823/0678) |
| Oct 18, 2021 Reel 57842, frame 170 | Mitchell International, Inc. | Goldman Sachs Bank USA | Second Lien Security Agreement |
| Oct 18, 2021 Reel 58014, frame 629 | Mitchell International, Inc. | Goldman Sachs Bank USA | First Lien Security Agreement |
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
Apr 2037
Term ends Apr 13, 2037. Maintenance fees still fall due before then
Citations
40
later US patents cite this one
That is top 10% of utility patents granted in 2018 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.