Term ends Aug 23, 2027 · High confidence
20-year base term ended Apr 29, 2025
Held by ABL IP Holding LLC
Filed Jun 25, 2008 as application 11/912,733 · Granted Dec 20, 2011
Base term plus 846 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Apr 29, 2005
Apr 29, 2005
Term ends
Aug 23, 2027
Aug 23, 2027
Granted
Dec 20, 2011
Dec 20, 2011
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
846
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.
6
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 846 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 Apr 29, 2005, when application PCT/US2005/014861, the earliest non-provisional in its chain, was filed (this one was filed Jun 25, 2008) | Apr 29, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +846 days, USPTO patent term adjustment record | Aug 23, 2027 | 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 | Aug 23, 2027 | High confidence |
This family
| US 7,038,400 | Term ended Apr 2024 | Apr 2024 |
| US 7,410,276 | Term ended May 2026 | May 2026 |
| US 7,436,675 | Term ended May 2024 | May 2024 |
| US 8,079,556 | this patent Aug 2027 | Aug 2027 |
| US 7,798,824 | In force Apr 2029 | Apr 2029 |
5 of 6 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 |
|---|---|---|---|
| Nov 23, 2015 Reel 37154, frame 961 | Juno Manufacturing, Inc.; Juno Manufacturing II, LLC; Juno Manufacturing II, LLC | Juno Manufacturing, LLC | Merger and Change of Name |
| Mar 28, 2016 Reel 38274, frame 622 | Juno Manufacturing, LLC | Juno Lighting, LLC | Merger |
| Mar 28, 2016 Reel 38274, frame 804 | Juno Lighting, LLC | Acuity Brands Lighting, Inc. | Merger |
| Jun 16, 2016 Reel 39050, frame 936 | Acuity Brands Lighting, Inc. | ABL IP Holding 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
Aug 2027
Term ends Aug 23, 2027. No further fees fall due before then
Note
The 846 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2011 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.