Collateral for a security interest recorded Nov 30, 2015 (Comerica Bank).
Lapsed Nov 15, 2024 on the fee record · High confidence
20-year base term ends Jun 12, 2034
Second maintenance fee unpaid; grace period ended.
Held by Cooledge Lighting Inc.
Filed Jun 12, 2014 as application 14/303,197 · Granted Nov 15, 2016
Base term, 20 years from filing, plus 32 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 15, 2024
2014
2034
Clock starts
Jun 12, 2014
Jun 12, 2014
No longer in force
Nov 15, 2024
Nov 15, 2024
Granted
Nov 15, 2016
Nov 15, 2016
Term would have run to
Jul 14, 2034
Jul 14, 2034
base term
patent term adjustment
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
32
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
20
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 Jul 14, 2034: its 20-year base term plus 32 days of term 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 Jun 12, 2014, when this application, 14/303,197, was filed | Jun 12, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +32 days, USPTO patent term adjustment record | Jul 14, 2034 | 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 15, 2024 | High confidence |
| Computed term end | The steps above, in order | Nov 15, 2024 | 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 | this patent Nov 2024 | Nov 2024 |
| US 9,526,132 | In force 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 |
|---|---|---|---|
| Sep 26, 2014 Reel 33824, frame 531 | Tischler, Michael A.; Palfreyman, Paul; Sheen, Calvin Wade | 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
Note
The 32 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
45
later US patents cite this one
That is top 10% 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.