Term ends Sep 10, 2028 · High confidence
20-year base term ends Sep 9, 2028
Held by Appleton GRP LLC
Filed Jan 18, 2011 as application 13/008,810 · Granted Jul 17, 2012
Base term plus 1 days of patent term adjustment (USPTO delay)
Today
2008
2028
Clock starts
Sep 9, 2008
Sep 9, 2008
Term ends
Sep 10, 2028
Sep 10, 2028
Granted
Jul 17, 2012
Jul 17, 2012
base term
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
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
3
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 1 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Sep 9, 2008, when application 12/283,053, the earliest non-provisional in its chain, was filed (this one was filed Jan 18, 2011) | Sep 9, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1 days, USPTO patent term adjustment record | Sep 10, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 10, 2028 | High confidence |
This family
| US 7,907,389 | In force Nov 2028 | Nov 2028 |
| US 8,223,475 | this patent Sep 2028 | Sep 2028 |
| US 8,817,455 | In force Apr 2029 | Apr 2029 |
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 |
|---|---|---|---|
| Jun 15, 2012 Reel 28382, frame 167 | Baird, Neil; Jenkins, Ian; Mina, Nabil L; Kanole, Yogesh D. | Egs Electrical Group LLC | Assignment of Assignor's Interest |
| Aug 25, 2014 Reel 33605, frame 682 | Egs Electrical Group LLC | Appleton GRP LLC | Change of Name |
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
Sep 2028
Term ends Sep 10, 2028. No further fees fall due before then
Note
The 1 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median 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
Computed patent terms end on the dates shown. 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.