Also listed on Kaybus, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Mar 17, 2025 (Prysm, Inc.).
Term ends Sep 23, 2035 · High confidence
20-year base term ends Sep 23, 2035
Held by MSSL Consolidated Inc.
Filed Sep 23, 2015 as application 14/862,621 · Granted Jan 9, 2018
Base term, 20 years from filing
Today
2015
2035
Clock starts
Sep 23, 2015
Sep 23, 2015
Term ends
Sep 23, 2035
Sep 23, 2035
Granted
Jan 9, 2018
Jan 9, 2018
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. 2 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 Sep 23, 2015, when this application, 14/862,621, was filed | Sep 23, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 23, 2035 | High confidence |
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 |
|---|---|---|---|
| Jan 21, 2016 Reel 37542, frame 873 | Mahmud, Gazi; Banda, Seenu; Liang, Deanna | Kaybus, Inc. | Assignment of Assignor's Interest |
| Jun 27, 2017 Reel 42829, frame 627 | Kaybus, Inc. | Prysm, Inc. | Assignment of Assignor's Interest |
| Aug 3, 2017 Reel 43432, frame 787 | Prysm, Inc. | Kuwait Investment Authority, As Collateral Agent | Security Interest |
| Nov 18, 2020 Reel 54411, frame 409 | Prysm, Inc.; Sococo, Inc. | Sococo, LLC | Merger and Change of Name |
| Mar 7, 2025 Reel 70442, frame 135 | Prysm Systems, Inc. | MSSL Consolidated Inc. | Assignment of Assignor's Interest |
| Mar 17, 2025 Reel 72856, frame 105 | Kuwait Investment Authority | Prysm, Inc. | Order Confirming the Prepackaged Plan of Reorganization of Prysm, Inc. Including Releasing Security Interests in Patents |
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.
What's changing
Sep 2035
Term ends Sep 23, 2035. Maintenance fees still fall due before then
Citations
23
later US patents cite this one
That is top 25% of utility patents granted in 2018 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.