Term ends May 17, 2032 · High confidence
20-year base term ends May 17, 2032
Held by Epistar Corporation
Filed May 18, 2018 as application 15/983,943 · Granted Jul 30, 2019
Base term, 20 years from filing
Today
2012
2032
Clock starts
May 17, 2012
May 17, 2012
Term ends
May 17, 2032
May 17, 2032
Granted
Jul 30, 2019
Jul 30, 2019
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,664,365, to May 17, 2032. The term already ends on or before that date, so the cap shortened nothing.
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.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 3 maintenance fees is 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 May 17, 2012, when application 13/473,929, the earliest non-provisional in its chain, was filed (this one was filed May 18, 2018) | 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 resolved from the filed document (refs US 9,664,365) | resolves to May 17, 2032, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 17, 2032 | High confidence |
This family
| Application 13/473,929 | Abandoned not computed | not computed |
| US 9,423,113 | Lapsed on the fee record 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 | this patent 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 |
|---|---|---|---|
| Mar 26, 2019 Reel 48701, frame 760 | Unity Opto Technology Co., Ltd. | Epistar Corporation | Security Interest |
| Apr 3, 2019 Reel 48787, frame 479 | Araki, John; Myers, J. Richard; Wong, Arthur N. | Pixi Lighting LLC | Assignment of Assignor's Interest |
| Apr 4, 2019 Reel 48799, frame 545 | Pixi Lighting LLC | Orangewoodd Legacy LLC | Assignment of Assignor's Interest |
| Apr 8, 2019 Reel 49864, frame 538 | Pixi Lighting LLC | Orangewood Legacy LLC | Corrective Assignment to Correct the Receiving Party Address Previously Recorded at Reel: 048799 Frame: 0545. Assignor(S) Hereby Confirms the Assignment. |
| Jun 5, 2019 Reel 49375, frame 607 | Orangewood Legacy LLC | Pixi Lighting, Inc. | Assignment of Assignor's Interest |
| Jun 10, 2019 Reel 49416, frame 611 | Ever Venture Solutions, Inc.; Pixi Lighting, Inc. | Unity Opto Technology Co., Ltd. | Assignment of Assignor's Interest |
| Apr 1, 2020 Reel 52291, frame 387 | 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 |
| Jun 1, 2020 Reel 52801, frame 253 | Unity Opto Technology Co., Ltd. | Feit Electric Company, Inc. | Assignment of Assignor's Interest |
| Mar 24, 2022 Reel 59496, frame 205 | Unity Opto Technology Co., Ltd. | Epistar Corporation | Assignment of Assignor's Interest |
| Mar 24, 2022 Reel 60250, frame 674 | 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
May 2032
Term ends May 17, 2032. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,664,365, ends no earlier than this term, so it caps nothing.
Citations
24
later US patents cite this one
That is top 10% of utility patents granted in 2019 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.