Patent US3573534A successfully refreshed from Google Patents.
US3573534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp base and leading-in wire connection
Assignee: General Electric Co
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Filing: 1968-10-28
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Granted: 1971-04-06
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Expires: 1988-10-28
Abstract
Abstract The contact of a conventional screw-type electric lamp base is provided with a side apertured dome-shaped boss for engaging a socket contact and a groove extending from and communicating with the side aperture for accommodation a leading-in wire threaded through the side aperture from the interior of the base and affixed to the contact within the groove.
Inventors
- 👤 Leroy G Leighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:43
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/50; H01J5/54; H01J5/62
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
46 words
A contact member for an electric lamp base having a domeshaped side apertured boss for engaging a socket contact and a groove extending from and communicating with the side aperture for receiving a leading-in wire threaded through the side aperture from the interior of the base.
Claim 2
Dependent Claim
46 words
A contact member for an electric lamp base having a domeshaped side apertured boss for engaging a socket contact and a groove extending from and communicating with the side aperture for receiving a leading-in wire threaded through the side aperture from the interior of the base.
Claim 3
Dependent Claim
28 words
A contact member according to claim 1 wherein the boss is in a disc-shaped part of the contact member and the groove extends radially from the side aperture.
Claim 4
Dependent Claim
20 words
A contact member according to claim 2 wherein the boss is centrally located in the disc-shaped part of the contact.
Claim 5
Dependent Claim
89 words
An electric lamp comprising a sealed envelope, a leading-in wire sealed through said envelope, a base, secured to the outer surface of said envelope, and a thin metal contact member affixed to the base and connected to said leading-in wire, said metal contact member being provided with an outwardly projecting socket contact engaging dome-shaped boss having a side aperture and a groove extending from and communicating with the side aperture, said wire extending through said side aperture, along said groove and being affixed to the contact within the groove.
Claim 6
Dependent Claim
89 words
An electric lamp comprising a sealed envelope, a leading-in wire sealed through said envelope, a base, secured to the outer surface of said envelope, and a thin metal contact member affixed to the base and connected to said leading-in wire, said metal contact member being provided with an outwardly projecting socket contact engaging dome-shaped boss having a side aperture and a groove extending from and communicating with the side aperture, said wire extending through said side aperture, along said groove and being affixed to the contact within the groove.
Claim 7
Dependent Claim
34 words
An electric lamp according to claim 4 wherein the depth of the groove and the diameter of the wire are so correlated that the wire does not project beyond the top of the groove.
Claim 8
Dependent Claim
33 words
An electric lamp according to claim 5 wherein the wire is affixed to the bottom of the groove and the curvature of the bottom of the groove corresponds to that of the wire.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |