US4228486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature electric light bulb sets for decorative illumination
Assignee: TOWA DENGYO CO Ltd
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Filing: 1978-12-01
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Granted: 1980-10-14
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Expires: 1998-12-01
Abstract
Abstract Miniature electric light bulb sets for decorative illumination are prepared by branching out two electric wires from one attachment plug and further branching out each of said two electric wires into two further electric wires at respective branch plates and providing a group of miniature electric light bulbs grouped at each terminal of the respective branched wires, the improved miniature electric light bulb sets for decorative illumination being prepared by simplifying each component, and reducing the production costs while maintaining safety.
Inventors
- 👤 Ryosuke Matsuya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:59
CPC Classifications
F; F21; F21S; F21S4/00; F21S4/10; Y; Y10; Y10S; Y10S362/00; Y10S362/806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A miniature electric light bulb set for decorative illumination which comprises two electric wires leading from an attachment plug, and leads of each electric wire being connected to the leads of two separate electric wires through a branch plate, the entire branch plate being molded with a synthetic resin material to form a sleeve, a first group of miniature electric light bulbs being connected in series to a system of the separate electric wires and a second group of miniature electric bulbs being similarly connected in series to the system of separate electric wires, and both groups of the miniature electric light bulbs being formed in a parallel circuit.
Claim 2
Dependent Claim
109 words
A miniature electric light bulb set for decorative illumination which comprises two electric wires leading from an attachment plug, and leads of each electric wire being connected to the leads of two separate electric wires through a branch plate, the entire branch plate being molded with a synthetic resin material to form a sleeve, a first group of miniature electric light bulbs being connected in series to a system of the separate electric wires and a second group of miniature electric bulbs being similarly connected in series to the system of separate electric wires, and both groups of the miniature electric light bulbs being formed in a parallel circuit.
References Cited (Backward Citations)
US1640282A
Cited
US3036206A
Cited
US3009052A
Cited
US3118618A
Cited
US3723723A
Cited
US3714414A
Cited
US4107767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |