Citizen Electronics Co., Ltd.
125 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 9 name spellings.
20
Ending by 2030
Feb 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Dec 30, 2026The maintenance fee for Semiconductor Light-Emitting Device, Exhibit-Irradiating Illumination Device, Meat-Irradiating Illumination Device, Vegetable-Irradiating Illumination Device, Fresh Fish-Irradiating Illumination Device, General-Purpose Illumination Device, and Semiconductor Light-E (US 9,070,843) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
- 2 fees due Jan 16 to 23, 2027 · next Jan 16
- 2 fees due Mar 12 to 29, 2027 · next Mar 12
- 3 fees due Apr 1 to 29, 2027 · next Apr 1
- 3 fees due May 5 to 19, 2027 · next May 5
- 3 fees due Jun 12 to 26, 2027 · next Jun 12
- 1 fee due Aug 11, 2027The maintenance fee for Light-Emitting Device (US 10,559,722) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
- 2 fees due Sep 10 to 17, 2027 · next Sep 10
- 3 fees due Oct 5 to 21, 2027 · next Oct 5
Recent changes
- 13 terms have ended since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,488,103 | Lighting device with light guide plate illuminated by LED In force · From the USPTO record | In force | From the USPTO record | |
| US 7,560,748 | Light emitting diode unit In force · From the USPTO record | In force | From the USPTO record | |
| US 7,477,009 | Phosphor Mixture and Light Emitting Device In force · High confidence | In force | High confidence | |
| US 7,543,973 | Light guide plate, method of manufacturing light guide plate and backlight with the light guide plate In force · From the USPTO record | In force | From the USPTO record | |
| US 7,630,037 | Double-sided backlight unit with different area first and second LCD panels and having a first light-diffusing sheet between a light guide plate and light-absorbing sheet and second light-diffusing sheet between the light guide plate and the second LCD panel In force · From the USPTO record | In force | From the USPTO record | |
| US 8,596,820 | LED unit and LED lighting lamp using the LED unit In force · From the USPTO record | In force | From the USPTO record | |
| US 7,816,691 | Light-emitting diode having a flexible substrate In force · From the USPTO record | In force | From the USPTO record | |
| US 7,728,342 | Light emitting apparatus method for producing it and assembly incorporating it In force · From the USPTO record | In force | From the USPTO record | |
| US 7,618,179 | Optical member, backlight unit and display apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 7,688,591 | Electronic-component-mounting board In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 142: 125 patents in force now held by others · 225 lapsed for an unpaid fee · 152 ended at full term · 3 surrendered on reissue. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
3 pending · 14 abandoned · 46 no status recorded