Term ends Apr 4, 2028 · High confidence
20-year base term ended Oct 25, 2025
Held by Open Text Inc.
Filed Oct 25, 2005 as application 11/258,536 · Granted Aug 9, 2011
Base term plus 892 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Oct 25, 2005
Oct 25, 2005
Term ends
Apr 4, 2028
Apr 4, 2028
Granted
Aug 9, 2011
Aug 9, 2011
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
892
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.
20
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 892 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 Oct 25, 2005, when this application, 11/258,536, was filed | Oct 25, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +892 days, USPTO patent term adjustment record | Apr 4, 2028 | 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 4, 2028 | High confidence |
This family
| US 7,533,131 | Term ended Dec 2025 | Dec 2025 |
| US 7,480,683 | Term ended Dec 2025 | Dec 2025 |
| US 7,565,695 | Term ended Mar 2026 | Mar 2026 |
| US 7,996,898 | this patent Apr 2028 | Apr 2028 |
| US 8,418,245 | In force Aug 2028 | Aug 2028 |
| US 7,721,333 | In force Mar 2029 | Mar 2029 |
| US 8,255,992 | In force no later than Feb 2028 | no later than Feb 2028 |
| US 8,079,032 | In force Jun 2030 | Jun 2030 |
8 of 20 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 |
|---|---|---|---|
| Oct 25, 2005 Reel 17147, frame 657 | Mood, Sarah L.; Stowers, Bradley D.; Greene, Michael P. | Webroot Software, Inc. | Assignment of Assignor's Interest |
| Mar 3, 2009 Reel 22339, frame 440 | Mood, Sarah L.; Stowers, Bradley D.; Greene, Michael P. | Webroot Software, Inc. | Assignment of Assignor's Interest |
| Sep 13, 2012 Reel 28953, frame 917 | Webroot Software, Inc. | Webroot Inc. | Change of Name |
| Jan 6, 2015 Reel 34742, frame 85 | Webroot Inc. | Wells Fargo Bank, National Association | Security Interest |
| Mar 22, 2019 Reel 50454, frame 102 | Wells Fargo Bank, National Association | Webroot Inc. | Release of Security Interest |
| Mar 28, 2019 Reel 48723, frame 612 | Webroot Inc. | Barclays Bank PLC, as Collateral Agent | Security Interest |
| Dec 26, 2019 Reel 51418, frame 714 | Barclays Bank PLC, as Collateral Agent | Webroot Inc. | Release of Security Interest in Patent Rights Recorded at R/F 048723/0612 |
| Jun 29, 2023 Reel 64167, frame 129 | Webroot LLC | Carbonite, LLC | Assignment of Assignor's Interest |
| Jun 29, 2023 Reel 64176, frame 622 | Webroot Inc. | Webroot LLC | Certificate of Conversion |
| Jul 6, 2023 Reel 64351, frame 178 | Carbonite, LLC | Open Text Inc. | Assignment and Assumption Agreement |
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 2028
Term ends Apr 4, 2028. No further fees fall due before then
Note
The 892 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is above the median of utility patents granted in 2011 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.