Term ends Sep 22, 2037 · High confidence
20-year base term ends Jun 16, 2037
Held by Platform Science, Inc.
Filed Jun 24, 2019 as application 16/450,959 · Granted Feb 9, 2021
Base term plus 98 days of patent term adjustment (USPTO delay)
Today
2017
2037
Clock starts
Jun 16, 2017
Jun 16, 2017
Term ends
Sep 22, 2037
Sep 22, 2037
Granted
Feb 9, 2021
Feb 9, 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
98
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.
66
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 98 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 Jun 16, 2017, when application 15/624,814, the earliest non-provisional in its chain, was filed (this one was filed Jun 24, 2019) | Jun 16, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +98 days, USPTO patent term adjustment record | Sep 22, 2037 | 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 | Sep 22, 2037 | High confidence |
This family
| US 9,961,710 | In force Jun 2037 | Jun 2037 |
| US 10,475,258 | In force Oct 2037 | Oct 2037 |
| US 10,070,471 | In force Jun 2037 | Jun 2037 |
| US 10,334,638 | In force Jun 2037 | Jun 2037 |
| US 10,652,935 | In force Jun 2037 | Jun 2037 |
| US 10,917,921 | this patent Sep 2037 | Sep 2037 |
| US 10,930,091 | In force Sep 2037 | Sep 2037 |
| US 10,803,682 | In force Jun 2037 | Jun 2037 |
8 of 66 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 |
|---|---|---|---|
| Jun 24, 2019 Reel 49572, frame 109 | Kennedy, John C.; Kopchinsky, Scott; Son, Don; Fields, Jacob | Platform Science, Inc. | Assignment of Assignor's Interest |
| Sep 4, 2020 Reel 53700, frame 301 | Platform Science, Inc. | Venture Lending & Leasing IX, Inc. | Security Interest |
| Mar 27, 2025 Reel 70809, frame 180 | Platform Science, Inc. | Venture Lending & Leasing IX, Inc. | Corrective Assignment to Correct the Application Numbers Previously Recorded at Reel: 53700 Frame: 301. Assignor(S) Hereby Confirms the Security Interest. |
| Mar 31, 2025 Reel 70689, frame 439 | Platform Science, Inc. | Venture Lending & Leasing IX, Inc.; Wti Fund X, Inc. | Corrective Assignment to Correct the the Erroneously Recorded Patent Application Numbers Previously Recorded at Reel: 61172 Frame: 822. Assignor(S) Hereby Confirms the Assignment. |
| Mar 31, 2025 reel/frame not recorded | Platform Science, Inc. | Venture Lending & Leasing IX, Inc. | Corrective Assignment to Correct the the Erroneously Recorded Patent Application Numbers Previously Recorded at Reel: 61172 Frame: 822. Assignor(S) Hereby Confirms the Assignment. |
| Mar 31, 2025 reel/frame not recorded | Platform Science, Inc. | Wti Fund X, Inc. | Corrective Assignment to Correct the the Erroneously Recorded Patent Application Numbers Previously Recorded at Reel: 61172 Frame: 822. Assignor(S) Hereby Confirms the Assignment. |
| May 1, 2025 Reel 71003, frame 495 | Venture Lending & Leasing IX, Inc. | Platform Science, Inc. | Release of Security Interest |
| May 2, 2025 Reel 71010, frame 635 | Wti Fund X, Inc.; Venture Lending & Leasing IX, Inc. | Platform Science, Inc. | Release of Security 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
Sep 2037
Term ends Sep 22, 2037. Maintenance fees still fall due before then
Note
The 98 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
later US patents cite this one
That is top 10% 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.