Term ends Feb 12, 2041 · High confidence
20-year base term ends Apr 21, 2040
Held by Zscaler, Inc.
Filed Apr 21, 2020 as application 16/853,862 · Granted Jun 6, 2023
Base term plus 297 days of patent term adjustment (USPTO delay)
Today
2020
2041
Clock starts
Apr 21, 2020
Apr 21, 2020
Term ends
Feb 12, 2041
Feb 12, 2041
Granted
Jun 6, 2023
Jun 6, 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
297
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.
13
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 297 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 21, 2020, when this application, 16/853,862, was filed | Apr 21, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +297 days, USPTO patent term adjustment record | Feb 12, 2041 | 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 | Feb 12, 2041 | High confidence |
This family
| US 11,582,261 | In force Aug 2040 | Aug 2040 |
| US 11,671,433 | this patent Feb 2041 | Feb 2041 |
| US 11,429,589 | In force Nov 2040 | Nov 2040 |
| US 11,805,138 | In force Mar 2041 | Mar 2041 |
| US 11,455,407 | In force Feb 2041 | Feb 2041 |
| US 12,095,799 | In force Oct 2040 | Oct 2040 |
| US 11,829,347 | In force Jul 2040 | Jul 2040 |
| US 12,299,156 | In force Aug 2041 | Aug 2041 |
8 of 13 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 |
|---|---|---|---|
| Apr 21, 2020 Reel 52449, frame 912 | Paul, Narinder; Bhallamudi, Arun; Tan, James; Zhang, Frank | Zscaler, Inc. | Assignment of Assignor's Interest |
| Jul 6, 2021 Reel 56763, frame 700 | Deshmukh, Pooja | Zscaler, Inc. | Assignment of Assignor's 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
Feb 2041
Term ends Feb 12, 2041. Maintenance fees still fall due before then
Note
The 297 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median 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.