Lapsed Sep 20, 2024 on the fee record · High confidence
20-year base term ends May 17, 2032
Second maintenance fee unpaid; grace period ended.
Held by Unity Opto Technology Co., Ltd.
Filed Sep 8, 2014 as application 14/480,262 · Granted Sep 20, 2016
Base term, 20 years from filing, plus 170 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 20, 2024
2012
2032
Clock starts
May 17, 2012
May 17, 2012
No longer in force
Sep 20, 2024
Sep 20, 2024
Granted
Sep 20, 2016
Sep 20, 2016
Term would have run to
Nov 3, 2032
Nov 3, 2032
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
170
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.
6
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 Nov 3, 2032: its 20-year base term plus 170 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 May 17, 2012, when application 13/473,918, the earliest non-provisional in its chain, was filed (this one was filed Sep 8, 2014) | May 17, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +170 days, USPTO patent term adjustment record | Nov 3, 2032 | 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 Sep 20, 2024 | High confidence |
| Computed term end | The steps above, in order | Sep 20, 2024 | High confidence |
This family
| US 8,915,636 | In force Jul 2032 | Jul 2032 |
| US 9,447,954 | this patent Sep 2024 | Sep 2024 |
| US 9,562,678 | In force May 2032 | May 2032 |
| US 9,453,616 | In force May 2032 | May 2032 |
| US 9,664,365 | In force May 2032 | May 2032 |
| US 10,422,518 | In force Jul 2032 | Jul 2032 |
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 9, 2014 Reel 33697, frame 568 | Araki, John; Myers, J. Richard | Pixi Lighting LLC | Assignment of Assignor's Interest |
| Sep 9, 2014 Reel 33697, frame 828 | Pixi Lighting LLC | Orangewood Legacy LLC | Change of Name |
| Sep 9, 2014 Reel 33697, frame 892 | Orangewood Legacy LLC | Pixi Lighting, Inc. | Assignment of Assignor's Interest |
| Dec 14, 2017 Reel 44402, frame 440 | Pixi Lighting, Inc. | Unity Opto Technology Co., Ltd. | Assignment of Assignor's Interest |
| Mar 26, 2019 Reel 48701, frame 760 | Unity Opto Technology Co., Ltd. | Epistar Corporation | Security Interest |
| May 29, 2020 Reel 52795, frame 406 | Epistar Corporation | Unity Opto Technology Co., Ltd. | Release of 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 170 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
22
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.