US3795830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Led slidebase switchboard lamp
Assignee: CMC TELECOM Corp
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Filing: 1972-08-17
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Granted: 1974-03-05
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Expires: 1992-08-17
Abstract
Abstract A light-emitting diode slidebase switchboard lamp having an LED at one end of an elongated sheath and a rigid, non-conducting base at the other. A resistor and a rectifier positioned in the sheath in axial alignment, each connected to the LED and to terminals positioned along the outside of the sheath. The terminals are cemented to the sheath and have end portions embedded in the base.
Inventors
- 👤 J Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:59
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36; F; F21; F21W; F21W2111/00; Y; Y10; Y10S; Y10S362/00; Y10S362/80
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A slidebase lamp comprising; a. an elongated housing; b. a light-emitting semiconductor element on one end of said housing, c. a pair of elongated terminals outside of and substantially coaxial with said housing; d. a resistor in said housing, e. a rectifier in said housing, f. said resistor, said rectifier, said element and said terminals being connected in series, and g. said resistor and said rectifier being positioned substantially axially relative to each other in said housing.
Claim 2
Dependent Claim
77 words
A slidebase lamp comprising; a. an elongated housing; b. a light-emitting semiconductor element on one end of said housing, c. a pair of elongated terminals outside of and substantially coaxial with said housing; d. a resistor in said housing, e. a rectifier in said housing, f. said resistor, said rectifier, said element and said terminals being connected in series, and g. said resistor and said rectifier being positioned substantially axially relative to each other in said housing.
Claim 3
Dependent Claim
15 words
A slidebase lamp as defined in claim 1 wherein said rectifier is a single diode.
Claim 4
Dependent Claim
15 words
A slidebase lamp as defined in claim 1 wherein said rectifier is a full-wave rectifier.
Claim 5
Dependent Claim
15 words
A slidebase lamp as defined in claim 1 wherein said element is a light-emitting diode.
Claim 6
Dependent Claim
31 words
A slidebase lamp as defined in claim 1 including a rigid base positioned at one end of said housing and said element being positioned at the other end of said housing.
Claim 7
Dependent Claim
16 words
A slidebase lamp as defined in claim 5 wherein said terminals are connected to said base.
Claim 8
Dependent Claim
15 words
A slidebase lamp as defined in claim 1 wherein said housing is an elongated sheath.
Claim 9
Dependent Claim
34 words
A slidebase lamp as defined in claim 1 including a base positioned at one end of said sheath, and said element in the form of a light-emitting diode positioned at the other end thereof.
Claim 10
Dependent Claim
21 words
A slidebase lamp as defined in claim 1 wherein said resistor is positioned closely adjacent at least one of said terminals.
Claim 11
Dependent Claim
19 words
A slidebase lamp as defined in claim 1 wherein said light-emitting element is encapsulated in a colored nonconducting material.
References Cited (Backward Citations)
US2956229A
Cited
US3430054A
Cited
US3534354A
Cited
US3659159A
Cited
US3609475A
Cited
US3696263A
Cited
US3697802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |