Term ends Dec 27, 2026 · High confidence
20-year base term ended Sep 27, 2026
Held by Salesforce, Inc.
Filed Sep 10, 2017 as application 15/700,134 · Granted Jun 30, 2020
Base term plus 91 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
Sep 27, 2006
Sep 27, 2006
Term ends
Dec 27, 2026
Dec 27, 2026
Granted
Jun 30, 2020
Jun 30, 2020
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
91
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 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
6
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 91 days past its 20-year base term on prosecution delay. 1 of 1 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 Sep 27, 2006, when application 11/528,753, the earliest non-provisional in its chain, was filed (this one was filed Sep 10, 2017) | Sep 27, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +91 days, USPTO patent term adjustment record | Dec 27, 2026 | 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 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 27, 2026 | High confidence |
This family
| US 9,053,461 | In force Aug 2028 | Aug 2028 |
| Application PCT/US2006/038728 | PCT application no patent term | no patent term |
| US 9,762,530 | Term ended Sep 2026 | Sep 2026 |
| US 10,701,026 | this patent Dec 2026 | Dec 2026 |
| US 11,240,194 | Term ended Oct 2026 | Oct 2026 |
| US 11,729,132 | Term ended Sep 2026 | Sep 2026 |
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 4, 2017 Reel 43775, frame 624 | Vemulapalli, Rajanikanth; Lu, Ming Judy; Kota, Jayarama Kumar | Yahoo! Inc. | Assignment of Assignor's Interest |
| Oct 4, 2017 Reel 44117, frame 172 | Yahoo! Inc. | Excalibur IP, LLC | Assignment of Assignor's Interest |
| Jan 30, 2020 Reel 51761, frame 307 | Excalibur IP, LLC | Slack Technologies, Inc. | Assignment of Assignor's Interest |
| Jul 29, 2021 Reel 57475, frame 404 | Slack Technologies, Inc. | Slack Technologies, LLC | Merger |
| Aug 18, 2023 Reel 64642, frame 564 | Slack Technologies, LLC | Salesforce, 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
Dec 2026
Term ends Dec 27, 2026. No further fees fall due before then
Note
The 91 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2020 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.