Term ends Jun 11, 2038 · High confidence
20-year base term ends Apr 27, 2037
Held by Superhuman Platform Inc.
Filed Apr 27, 2017 as application 15/499,882 · Granted Oct 3, 2023
Base term plus 410 days of patent term adjustment (USPTO delay)
Today
2017
2038
Clock starts
Apr 27, 2017
Apr 27, 2017
Term ends
Jun 11, 2038
Jun 11, 2038
Granted
Oct 3, 2023
Oct 3, 2023
base term
patent term adjustment
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
410
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
20
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 410 days past its 20-year base term on prosecution delay. 0 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 27, 2017, when this application, 15/499,882, was filed | Apr 27, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +410 days, USPTO patent term adjustment record | Jun 11, 2038 | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 11, 2038 | High confidence |
This family
| US 10,466,868 | In force Apr 2037 | Apr 2037 |
| Application PCT/US2017/029983 | PCT application no patent term | no patent term |
| US 10,466,867 | In force Apr 2037 | Apr 2037 |
| US 11,775,136 | this patent Jun 2038 | Jun 2038 |
| US 10,489,018 | In force Apr 2037 | Apr 2037 |
| US 10,983,670 | In force Apr 2037 | Apr 2037 |
| US 10,877,633 | In force Apr 2037 | Apr 2037 |
| US 11,106,332 | In force Apr 2037 | Apr 2037 |
8 of 20 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 |
|---|---|---|---|
| Oct 10, 2017 Reel 43827, frame 79 | Boucher, Melissa Ming-sak; Britton, Jeremy Edward; Bayes, Luke; Caso, Monica F.; Deneui, Alexander W.; Eck, Christopher Leland; Ellis, Nigel Robin; Fortes, Filipe P.; Greenspan, David Lilja; Hobbs, Brett Robert; Hudson, Matthew B.; James, Timothy Andrew; Mendes, Kenneth Francis; Mehrotra, Shishir S.; O'brien, Trevor Michael; Shackleton, Lane Patrick; Shi, Rhed; Sivaramakrishnan, Hariharan; Stowe, Jason Peter; Tamulonis, Jason Andrew; Vasishth, Himanshu; Vyaghrapuri, Ramesh Krishna; Wright, David Richard; Zhan, Irvin; Zurawicki, Roger Mathieu | Krypton Project, Inc. | Assignment of Assignor's Interest |
| Oct 10, 2017 Reel 44171, frame 107 | Krypton Project, Inc. | Coda Project, Inc. | Change of Name |
| Mar 5, 2025 Reel 70407, frame 635 | Coda Project, Inc. | Coda Project, LLC | Merger |
| Mar 5, 2025 Reel 70407, frame 687 | Coda Project, LLC | 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
Jun 2038
Term ends Jun 11, 2038. Maintenance fees still fall due before then
Note
The 410 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
30
later US patents cite this one
That is top 5% of utility patents granted in 2023 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.