Term ends no later than May 5, 2028 · Low confidence
20-year base term ended Oct 7, 2025
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 NRT Technologies, Inc.
Filed Sep 28, 2007 as application 11/904,778 · Granted Dec 20, 2016
Base term plus 941 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Oct 7, 2005
Oct 7, 2005
Ends no later than
May 5, 2028
May 5, 2028
Granted
Dec 20, 2016
Dec 20, 2016
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
941
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.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
11
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 941 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. 2 of 2 maintenance fees are paid so far. Confidence: Low. 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 7, 2005, when application 11/245,930, the earliest non-provisional in its chain, was filed (this one was filed Sep 28, 2007); a parent in its chain could not be resolved (the next row) | Oct 7, 2025 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +941 days, USPTO patent term adjustment record | May 5, 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 | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than May 5, 2028 | Low confidence |
This family
| Application 11/245,930 | Abandoned not computed | not computed |
| Application 11/359,225 | Abandoned not computed | not computed |
| Application 11/590,283 | Abandoned not computed | not computed |
| US 9,524,606 | this patent no later than May 2028 | no later than May 2028 |
| Application 12/502,923 | Abandoned not computed | not computed |
| Application PCT/US2010/031195 | PCT application no patent term | no patent term |
| US 10,134,221 | Term ended Oct 2025 | Oct 2025 |
| US 11,100,746 | Term ended Oct 2025 | Oct 2025 |
8 of 11 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 |
|---|---|---|---|
| May 23, 2008 Reel 21020, frame 673 | Stasi, Perry B.; McClellan, Ryan P. | Visualimits, LLC | Assignment of Assignor's Interest |
| Sep 20, 2017 Reel 43919, frame 458 | Visualimits, LLC | Fifth Third Bank, As Administrative Agent | Notice of Grant of Security Interest in Patents |
| Sep 3, 2021 Reel 57405, frame 985 | Visualimits, LLC | Canadian Imperial Bank of Commerce, as Administrative Agent | Security Agreement |
| Sep 17, 2021 Reel 57511, frame 436 | Fifth Third Bank, National Association | Visualimits, LLC | Release of Security Interest |
| Jun 26, 2024 Reel 67840, frame 980 | Visualimits, LLC | NRT Technologies, Inc. | 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
May 2028
Term ends no later than May 5, 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 941 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 5, 2028. We will not guess the cap.
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2016 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.