Collateral for a security interest recorded Nov 30, 2015 (Comerica Bank).
Lapsed Nov 25, 2022 on the fee record · High confidence
20-year base term ends Jan 24, 2033
Second maintenance fee unpaid; grace period ended.
Held by Cooledge Lighting, Inc.
Filed Jul 24, 2013 as application 13/949,546 · Granted Nov 25, 2014
Base term, 20 years from filing
Today
Lapsed Nov 25, 2022
2013
2033
Clock starts
Jan 24, 2013
Jan 24, 2013
No longer in force
Nov 25, 2022
Nov 25, 2022
Granted
Nov 25, 2014
Nov 25, 2014
Term would have run to
Jan 24, 2033
Jan 24, 2033
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
15
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jan 24, 2033: its 20-year base term, with no adjustment for prosecution delay. 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 Jan 24, 2013, when application 13/748,864, the earliest non-provisional in its chain, was filed (this one was filed Jul 24, 2013) | Jan 24, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 3 maintenance fees paid | lapsed Nov 25, 2022 | High confidence |
| Computed term end | The steps above, in order | Nov 25, 2022 | High confidence |
This family
| US 8,759,125 | In force Feb 2033 | Feb 2033 |
| US 8,629,475 | In force Jan 2033 | Jan 2033 |
| US 8,907,362 | In force Jan 2033 | Jan 2033 |
| US 8,896,010 | this patent Nov 2022 | Nov 2022 |
| US 8,680,558 | In force Jan 2033 | Jan 2033 |
| US 8,748,929 | In force Jan 2033 | Jan 2033 |
| US 8,785,960 | In force Jan 2033 | Jan 2033 |
| US 8,884,326 | In force Jan 2033 | Jan 2033 |
8 of 15 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 10, 2013 Reel 31378, frame 135 | Tischler, Michael A. | Cooledge Lighting Inc. | Assignment of Assignor's Interest |
| Mar 11, 2014 Reel 32404, frame 308 | Tischler, Michael A. | 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.
Citations
43
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.