Term ends no later than Feb 20, 2028 · Medium confidence

Computed 20-year base term

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 13, 2007 as application 11/685,602 · Granted Dec 29, 2009

Base term plus 344 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Ends no later than Feb 20, 2028

2007 2028

Clock starts
Mar 13, 2007

Ends no later than
Feb 20, 2028

Granted
Dec 29, 2009

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

344

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.

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 344 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 13, 2007, when this application, 11/685,602, was filed	Mar 13, 2027	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+344 days, USPTO patent term adjustment record	Feb 20, 2028	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 Feb 20, 2028	Medium confidence

This family

US 7,640,105	this patent no later than Feb 2028	no later than Feb 2028
US 8,060,304	In force Nov 2029	Nov 2029
Application PCT/US2008/055798	PCT application no patent term	no patent term
US 8,386,178	In force Jul 2029	Jul 2029
US 8,700,325	Lapsed on the fee record Apr 2026	Apr 2026
US 9,086,277	In force May 2029	May 2029
US 8,401,791	Lapsed on the fee record Mar 2021	Mar 2021
US 8,478,523	In force no later than Dec 2028	no later than Dec 2028

8 of 16 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 13, 2007 Reel 19004, frame 345	Nielsen, Steven; Chambers, Curtis; Farr, Jeffrey; Conner, Mark A.	Dycom Identity, LLC	Assignment of Assignor's Interest
Sep 10, 2008 Reel 21507, frame 742	Dycom Identity, LLC	Certusview Technologies, LLC	Assignment of Assignor's Interest
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.

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Alerts on its grants, lapses and transfers.

What's changing

Feb 2028

Term ends no later than Feb 20, 2028. 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 344 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 Feb 20, 2028. We will not guess the cap.

Citations

242

later US patents cite this one

That is top 5% of utility patents granted in 2009 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.

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