Lapsed Apr 2, 2021 on the fee record · High confidence
20-year base term ends Jul 9, 2028
Second maintenance fee unpaid; grace period ended.
Filed Jul 9, 2008 as application 12/170,268 · Granted Apr 2, 2013
Base term, 20 years from filing, plus 1017 days of patent term adjustment (USPTO delay)
Today
Lapsed Apr 2, 2021
2008
2031
Clock starts
Jul 9, 2008
Jul 9, 2008
No longer in force
Apr 2, 2021
Apr 2, 2021
Granted
Apr 2, 2013
Apr 2, 2013
Term would have run to
Apr 22, 2031
Apr 22, 2031
base term
patent term adjustment
after the term ends
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
1,017
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 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.
12
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Apr 22, 2031: its 20-year base term plus 1017 days of term adjustment for prosecution delay. 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 Jul 9, 2008, when this application, 12/170,268, was filed | Jul 9, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1017 days, USPTO patent term adjustment record | Apr 22, 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 | 1 of 3 maintenance fees paid | lapsed Apr 2, 2021 | High confidence |
| Computed term end | The steps above, in order | Apr 2, 2021 | High confidence |
This family
| US 8,411,935 | this patent Apr 2021 | Apr 2021 |
| US 8,189,905 | In force Feb 2031 | Feb 2031 |
| Application PCT/US2008/069700 | PCT application no patent term | no patent term |
| Application PCT/US2008/069694 | PCT application no patent term | no patent term |
| US 8,923,609 | In force Jul 2028 | Jul 2028 |
| US 9,235,752 | In force Jul 2028 | Jul 2028 |
| US 9,489,569 | In force Jul 2028 | Jul 2028 |
| US 9,665,774 | In force Jul 2028 | Jul 2028 |
8 of 12 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 |
|---|---|---|---|
| Jul 9, 2008 Reel 21215, frame 505 | Eaton, John Eric; Cobb, Wesley Kenneth; Urech, Dennis G.; Friedlander, David S.; Xu, Gang; Seow, Ming-jung; Risinger, Lon W.; Solum, David M.; Yang, Tao; Gottumukkal, Rajikiran K.; Saitwal, Kishor Adinath | Behavioral Recognition Systems, Inc. | Assignment of Assignor's Interest |
| Feb 4, 2015 Reel 34881, frame 412 | Behavioral Recognition Systems, Inc. | 9051147 Canada Inc. | Assignment of Assignor's Interest |
| Apr 8, 2015 Reel 35387, frame 176 | Canada Inc. | HSBC Bank Canada | Security Interest |
| Dec 12, 2016 Reel 40886, frame 579 | 9051147 Canada Inc. | Avigilon Patent Holding 1 Corporation | Change of Name |
| Aug 21, 2018 Reel 46895, frame 803 | HSBC Bank Canada | Avigilon Patent Holding 1 Corporation | Release of Security 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
Note
The 1017 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
154
later US patents cite this one
That is top 5% of utility patents granted in 2013 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.