Term ends Aug 17, 2036 · Medium confidence
20-year base term ends Aug 17, 2036
Why Medium: A parent in the chain could not be resolved.
Held by Parker Intangibles LLC
Filed Feb 14, 2018 as application 15/896,589 · Granted Feb 1, 2022
Base term, 20 years from filing
Today
2016
2036
Clock starts
Aug 17, 2016
Aug 17, 2016
Term ends
Aug 17, 2036
Aug 17, 2036
Granted
Feb 1, 2022
Feb 1, 2022
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.
1 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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 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 Aug 17, 2016, when application PCT/US2016/047283, the earliest non-provisional in its chain, was filed (this one was filed Feb 14, 2018); a parent in its chain could not be resolved (the next row) | Aug 17, 2036 | 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 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 17, 2036 | Medium confidence |
This family
| Application PCT/US2016/047283 | PCT application no patent term | no patent term |
| Application 62/459,990 | Provisional application no patent term | no patent term |
| Application PCT/US2018/017952 | PCT application no patent term | no patent term |
| US 11,235,270 | this patent Aug 2036 | Aug 2036 |
| US 11,278,833 | In force Dec 2036 | Dec 2036 |
| US 11,944,927 | In force Dec 2036 | Dec 2036 |
| Application 18/586,796 | 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 |
|---|---|---|---|
| Jul 26, 2018 Reel 46633, frame 766 | Tate, Jason L.; Calcaterra, Farrell F.; Green, Thomas B.; Wick, Charles R.; Pastrana, Ryan M.; Michlitsch, John | Clarcor Inc. | Assignment of Assignor's Interest |
| Aug 26, 2020 Reel 53603, frame 944 | Clarcor Inc. | Parker-Hannifin Corporation | Merger |
| May 13, 2022 Reel 59900, frame 975 | Parker-Hannifin Corporation | Parker Intangibles LLC | 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
Aug 2036
Term ends Aug 17, 2036. Maintenance fees still fall due before then
Citations
10
later US patents cite this one
That is top 25% of utility patents granted in 2022 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.