Term ends no later than May 4, 2031 · Medium confidence
20-year base term ends Mar 18, 2028
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Certusview Technologies, LLC
Filed Mar 18, 2008 as application 12/050,555 · Granted Aug 21, 2012
Base term plus 1142 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Mar 18, 2008
Mar 18, 2008
Ends no later than
May 4, 2031
May 4, 2031
Granted
Aug 21, 2012
Aug 21, 2012
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
1,142
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
129
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 1142 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. 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 Mar 18, 2008, when this application, 12/050,555, was filed | Mar 18, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1142 days, USPTO patent term adjustment record | May 4, 2031 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than May 4, 2031 | Medium confidence |
This family
| US 8,532,342 | In force Apr 2031 | Apr 2031 |
| US 8,249,306 | this patent no later than May 2031 | no later than May 2031 |
| US 9,659,268 | In force Jun 2029 | Jun 2029 |
| US 8,340,359 | In force Jan 2030 | Jan 2030 |
| US 8,934,678 | In force Mar 2028 | Mar 2028 |
| US 8,290,215 | In force no later than Dec 2030 | no later than Dec 2030 |
| US 8,355,542 | Lapsed on the fee record Jan 2021 | Jan 2021 |
| US 8,300,895 | In force Mar 2030 | Mar 2030 |
8 of 129 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 |
|---|---|---|---|
| Mar 18, 2008 Reel 20668, frame 90 | Nielsen, Steven; Chambers, Curtis | Dycom Technology, LLC | Assignment of Assignor's Interest |
| Sep 10, 2008 Reel 21510, frame 366 | Dycom Technology, LLC | Certusview Technologies, LLC | Change of Name |
| Nov 6, 2008 Reel 21797, frame 318 | Dycom Technology, LLC; Dycom Industries, Inc.; Certusview Technologies, LLC | Brown Rudnick LLP | Notice of Attorney's Lien |
| Dec 1, 2008 Reel 21907, frame 232 | Brown Rudnick LLP | Dycom Technology, LLC; Dycom Industries, Inc.; Certusview Technologies, LLC | Termination of Notice of Attorney's Lien |
| Dec 1, 2008 reel/frame not recorded | Brown Rudnick LLP | Dycom Technology, LLC | Termination of Notice of Attorney's Lien |
| Dec 1, 2008 reel/frame not recorded | Brown Rudnick LLP | Dycom Industries, Inc. | Termination of Notice of Attorney's Lien |
| Dec 1, 2008 reel/frame not recorded | Brown Rudnick LLP | Certusview Technologies, LLC | Termination of Notice of Attorney's Lien |
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
May 2031
Term ends no later than May 4, 2031. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 1142 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than May 4, 2031. We will not guess the cap.
Citations
146
later US patents cite this one
That is top 5% of utility patents granted in 2012 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.