Lapsed Aug 23, 2024 on the fee record · Medium confidence
20-year base term ends May 17, 2032
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
Second maintenance fee unpaid; grace period ended.
Held by Unity Opto Technology Co., Ltd.
Filed Sep 26, 2014 as application 14/497,943 · Granted Aug 23, 2016
Base term, 20 years from filing
Today
Lapsed Aug 23, 2024
2012
2032
Clock starts
May 17, 2012
May 17, 2012
No longer in force
Aug 23, 2024
Aug 23, 2024
Granted
Aug 23, 2016
Aug 23, 2016
Term would have run to
May 17, 2032
May 17, 2032
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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
8
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 May 17, 2032: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. 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 13/473,929, the earliest non-provisional in its chain, was filed (this one was filed Sep 26, 2014) | May 17, 2032 | 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 | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Aug 23, 2024 | High confidence |
| Computed term end | The steps above, in order | Aug 23, 2024 | Medium confidence |
This family
| Application 13/473,929 | Abandoned not computed | not computed |
| US 9,423,113 | this patent Aug 2024 | Aug 2024 |
| Application 14/554,919 | Abandoned not computed | not computed |
| US 9,335,036 | Lapsed on the fee record May 2024 | May 2024 |
| US 9,441,801 | In force May 2032 | May 2032 |
| US 9,523,487 | Lapsed on the fee record Dec 2024 | Dec 2024 |
| US 9,976,732 | In force May 2032 | May 2032 |
| US 10,364,974 | In force May 2032 | May 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 26, 2014 Reel 33828, frame 784 | Myers, J. Richard; Araki, John | Pixi Lighting LLC | Assignment of Assignor's Interest |
| Sep 26, 2014 Reel 33830, frame 1 | Orangewood Legacy LLC | Pixi Lighting, Inc. | Assignment of Assignor's Interest |
| Sep 26, 2014 Reel 33832, frame 428 | Pixi Lighting LLC | Orangewood Legacy LLC | Change of Name |
| Dec 14, 2017 Reel 44402, frame 440 | Pixi Lighting, Inc. | Unity Opto Technology Co., Ltd. | Assignment of Assignor's Interest |
| Dec 14, 2017 Reel 44876, frame 986 | Araki, John; Myers, J. Richard; Wong, Arthur N. | Pixi Lighting, Inc. | Corrective Assignment to Correct the Assignee and Assignor Previously Recorded at Reel: 033727 Frame: 0784. Assignor(S) Hereby Confirms the Assignment . |
| Dec 19, 2017 Reel 44914, frame 831 | Araki, John; Myers, J. Richard; Wong, Arthur N. | Pixi Lighting, Inc. | Corrective Assignment to Correct the Assignee and Assignor Previously Recorded at Reel: 033828 Frame: 0784. Assignor(S) Hereby Confirms the Assignment . |
| 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Aug 23, 2024. We will not guess the cap.
Citations
27
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.