Term ends Apr 19, 2031 · High confidence
20-year base term ends Jun 18, 2029
Held by Verisign, Inc.
Filed Jun 18, 2009 as application 12/487,567 · Granted Dec 2, 2014
Base term plus 670 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Jun 18, 2009
Jun 18, 2009
Term ends
Apr 19, 2031
Apr 19, 2031
Granted
Dec 2, 2014
Dec 2, 2014
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
670
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
82
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 670 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 18, 2009, when this application, 12/487,567, was filed | Jun 18, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +670 days, USPTO patent term adjustment record | Apr 19, 2031 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 19, 2031 | High confidence |
This family
| US 8,904,519 | this patent Apr 2031 | Apr 2031 |
| US 8,224,923 | In force May 2030 | May 2030 |
| Application 12/504,396 | Abandoned not computed | not computed |
| US 8,175,098 | In force Jul 2030 | Jul 2030 |
| US 8,463,928 | In force Jul 2031 | Jul 2031 |
| US 8,949,251 | In force Dec 2030 | Dec 2030 |
| Application PCT/US2010/038517 | PCT application no patent term | no patent term |
| Application PCT/US2010/039079 | PCT application no patent term | no patent term |
8 of 82 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 |
|---|---|---|---|
| Sep 11, 2009 Reel 23217, frame 677 | Essawi, Tarik; Gould, James; Kane, Pat; Schonfeld, Dan; Waldron, Joe | Verisign, Inc. | Assignment of Assignor's Interest |
| Aug 28, 2014 Reel 33630, frame 313 | Hollenbeck, Scott | Verisign, 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
Apr 2031
Term ends Apr 19, 2031. No further fees fall due before then
Note
The 670 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
16
later US patents cite this one
That is above the median of utility patents granted in 2014 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.