Term ends Jan 13, 2039 · High confidence
20-year base term ends Aug 4, 2038
Held by Superhuman Platform Inc.
Filed Aug 4, 2018 as application 16/055,027 · Granted Feb 22, 2022
Base term plus 162 days of patent term adjustment (USPTO delay)
Today
2018
2039
Clock starts
Aug 4, 2018
Aug 4, 2018
Term ends
Jan 13, 2039
Jan 13, 2039
Granted
Feb 22, 2022
Feb 22, 2022
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
162
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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 runs 162 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Aug 4, 2018, when this application, 16/055,027, was filed | Aug 4, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +162 days, USPTO patent term adjustment record | Jan 13, 2039 | 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 | Jan 13, 2039 | High confidence |
This family
| US 10,922,483 | In force Oct 2038 | Oct 2038 |
| US 11,321,522 | In force Aug 2038 | Aug 2038 |
| US 11,258,734 | this patent Jan 2039 | Jan 2039 |
| US 11,620,566 | In force Sep 2041 | Sep 2041 |
| US 11,727,205 | In force Aug 2038 | Aug 2038 |
| US 12,166,809 | In force Aug 2038 | Aug 2038 |
| Application 18/956,657 | 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 |
|---|---|---|---|
| Feb 21, 2019 Reel 48392, frame 61 | Shevchenko, Oleksiy; Mandal, Ayan; Hoover, Bradley Jon; Tetreault, Joel; Lytvyn, Maksym; Lider, Dmytro | Grammarly, Inc. | Assignment of Assignor's Interest |
| Nov 21, 2025 Reel 73655, frame 99 | Grammarly, Inc. | Superhuman Platform Inc. | 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
Jan 2039
Term ends Jan 13, 2039. Maintenance fees still fall due before then
Note
The 162 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
15
later US patents cite this one
That is top 10% 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.