Collateral for a security interest recorded Oct 20, 2025 (Monroe Capital Management Advisors, LLC).
Term ends Jan 26, 2039 · High confidence
20-year base term ends May 23, 2038
Held by Singlestore, Inc.
Filed May 23, 2018 as application 15/987,737 · Granted Jan 19, 2021
Base term plus 248 days of patent term adjustment (USPTO delay)
Today
2018
2039
Clock starts
May 23, 2018
May 23, 2018
Term ends
Jan 26, 2039
Jan 26, 2039
Granted
Jan 19, 2021
Jan 19, 2021
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
248
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.
4
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 248 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 May 23, 2018, when this application, 15/987,737, was filed | May 23, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +248 days, USPTO patent term adjustment record | Jan 26, 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 26, 2039 | High confidence |
This family
| US 10,896,225 | this patent Jan 2039 | Jan 2039 |
| Application PCT/US2019/033523 | PCT application no patent term | no patent term |
| US 11,645,336 | In force Nov 2038 | Nov 2038 |
| US 12,056,191 | In force May 2038 | May 2038 |
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 |
|---|---|---|---|
| Jun 27, 2018 Reel 46212, frame 595 | Nowakiewicz, Michal; Hanson, Eric Norman; Boutin, Eric | Memsql Inc. | Assignment of Assignor's Interest |
| Apr 29, 2020 Reel 52523, frame 977 | Memsql, Inc. | Hercules Capital, Inc., as Collateral and Administrative Agent | Intellectual Property Security Agreement |
| Nov 13, 2020 Reel 54414, frame 655 | Memsql, Inc. | Singlestore, Inc. | Change of Name |
| Jun 30, 2021 reel/frame not recorded | Hercules Capital, Inc. | Singlestore, Inc. | Release of Security Interest |
| Jun 30, 2021 reel/frame not recorded | Hercules Capital, Inc. | Memsql Usg, Inc. | Release of Security Interest |
| Jun 30, 2021 Reel 56723, frame 449 | Hercules Capital, Inc. | Singlestore, Inc.; Memsql Usg, Inc. | Release of Security Interest |
| Jul 9, 2021 Reel 56805, frame 312 | Singlestore, Inc. | Silicon Valley Bank | Security Interest |
| Oct 9, 2025 Reel 72524, frame 652 | Silicon Valley Bank | Singlestore, Inc. | Release of Security Interest |
| Oct 20, 2025 Reel 73122, frame 161 | Singlestore, Inc. | Monroe Capital Management Advisors, LLC, as Agent | Patent 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
Jan 2039
Term ends Jan 26, 2039. Maintenance fees still fall due before then
Note
The 248 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is above the median of utility patents granted in 2021 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.