US3706902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp with resilient base
Assignee: GTE Sylvania Inc
•
Filing: 1970-06-01
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Granted: 1972-12-19
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Expires: 1990-06-01
Abstract
Abstract An electric lamp having a light-transmitting envelope, such as a bulb, attached to a contact base by a resilient cement such as a di-methyl silicone rubber, and spaced from the base by said cement, to resist the transmission of vibration and shock from the base to the bulb.
Inventors
- 👤 Robert Wilbur Cookson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:46
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
30 words
The lamp of claim 1, in which the resilient cement is present in sufficient thickness to substantially reduce the transmission of shock and vibration from the base to the envelope.
Claim 2
Dependent Claim
15 words
The lamp of claim 1, in which the resilient cement is a di-methyl silicone rubber.
Claim 3
Dependent Claim
15 words
The lamp of claim 2, in which the resilient cement is a di-methyl silicone rubber.
References Cited (Backward Citations)
US2406271A
Cited
US2354642A
Cited
US2383925A
Cited
US2398595A
Cited
FR1099791A
Cited
FR1168854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |