Collateral for a security interest recorded Nov 30, 2015 (Comerica Bank).
Term ends Mar 13, 2033 · High confidence
20-year base term ends Mar 13, 2033
Held by Cooledge Lighting Inc.
Filed Sep 29, 2014 as application 14/499,887 · Granted Dec 20, 2016
Base term plus 100 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2013
2033
Clock starts
Mar 13, 2013
Mar 13, 2013
Term ends
Mar 13, 2033
Mar 13, 2033
Granted
Dec 20, 2016
Dec 20, 2016
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
100
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,704,448, US 8,884,534, US 9,089,018.
2 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.
20
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 100 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are paid so far. 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 Mar 13, 2013, when application 13/799,807, the earliest non-provisional in its chain, was filed (this one was filed Sep 29, 2014) | Mar 13, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +100 days, USPTO patent term adjustment record | Jun 21, 2033 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,704,448, US 8,884,534, US 9,089,018) | capped to Mar 13, 2033 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 13, 2033 | High confidence |
This family
| US 8,947,001 | Lapsed on the fee record Feb 2023 | Feb 2023 |
| US 8,786,200 | Lapsed on the fee record Jul 2022 | Jul 2022 |
| US 8,704,448 | Lapsed on the fee record Apr 2022 | Apr 2022 |
| Application PCT/US2013/056567 | PCT application no patent term | no patent term |
| US 8,884,534 | In force Mar 2033 | Mar 2033 |
| US 9,506,633 | In force Aug 2033 | Aug 2033 |
| US 9,494,305 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| US 9,526,132 | this patent Mar 2033 | Mar 2033 |
8 of 20 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 |
|---|---|---|---|
| Oct 1, 2014 Reel 33864, frame 780 | Tischler, Michael A.; Palfreyman, Paul; Schick, Philippe M.; Jungwirth, Paul | Cooledge Lighting Inc. | Assignment of Assignor's Interest |
| Nov 30, 2015 Reel 37171, frame 512 | Cooledge Lighting Inc. | Comerica Bank | Security 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
Mar 2033
Term ends Mar 13, 2033. Maintenance fees still fall due before then
Note
The 100 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,704,448, US 8,884,534, US 9,089,018.
Citations
14
later US patents cite this one
That is top 25% 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
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.