Lapsed Sep 10, 2025 on the fee record · Medium confidence
20-year base term ends Jun 30, 2032
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
Third maintenance fee unpaid; grace period ended.
Held by Certusview Technologies, LLC
Filed Nov 30, 2012 as application 13/690,814 · Granted Sep 10, 2013
Base term, 20 years from filing
Today
Lapsed Sep 10, 2025
2012
2032
Clock starts
Jun 30, 2012
Jun 30, 2012
No longer in force
Sep 10, 2025
Sep 10, 2025
Granted
Sep 10, 2013
Sep 10, 2013
Term would have run to
Jun 30, 2032
Jun 30, 2032
base term
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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
2 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 Jun 30, 2032: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. 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 30, 2012, when application 13/539,383, the earliest non-provisional in its chain, was filed (this one was filed Nov 30, 2012) | Jun 30, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Sep 10, 2025 | High confidence |
| Computed term end | The steps above, in order | Sep 10, 2025 | Medium confidence |
This family
| US 8,948,596 | In force Nov 2032 | Nov 2032 |
| US 8,543,003 | Lapsed on the fee record Sep 2025 | Sep 2025 |
| US 8,578,437 | Lapsed on the fee record Nov 2021 | Nov 2021 |
| US 8,811,191 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 8,650,606 | Lapsed on the fee record Feb 2026 | Feb 2026 |
| US 8,532,488 | this patent Sep 2025 | Sep 2025 |
| US 9,019,855 | In force Jun 2032 | Jun 2032 |
| US 9,088,310 | In force Jun 2032 | Jun 2032 |
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 |
|---|---|---|---|
| Dec 20, 2012 Reel 29507, frame 626 | Nielsen, Steven; Totten, Ronald; Halky, Travis | Certusview Technologies, LLC | 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
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Sep 10, 2025. We will not guess the cap.
Citations
26
later US patents cite this one
That is top 25% 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.