US3240861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel lamp seal
Assignee: General Electric Co
•
Filing: 1961-05-01
•
Granted: 1966-03-15
•
Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Richard S Christy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:50
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21S8/02; H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/10; H01J61/103; H01J61/38; H01J61/42; H01J9/00; H01J9/20; H01J9/22; H01J9/221; H01J9/223; H01J9/24; H01J9/26; H01J9/261; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A SEALED EVACUATED ELECTRIC DEVICE COMPRISING A VITREOUS ENVELOPE FORMED OF A PAIR OF VITREOUS PLATES DEFINING AN ENCLOSURE AND FUSED TOGETHER ALONG THEIR OVERLAPPING MARGINS TO PROVIDE A VITREOUS LEDGE SEAL, AND AN EXHAUST
Claim 2
Dependent Claim
35 words
A SEALED EVACUATED ELECTRIC DEVICE COMPRISING A VITREOUS ENVELOPE FORMED OF A PAIR OF VITREOUS PLATES DEFINING AN ENCLOSURE AND FUSED TOGETHER ALONG THEIR OVERLAPPING MARGINS TO PROVIDE A VITREOUS LEDGE SEAL, AND AN EXHAUST
References Cited (Backward Citations)
US2220741A
Cited
US2269165A
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US2406146A
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US2620598A
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US2555749A
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US2677920A
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NL94978C
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US2874710A
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US2965114A
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US2987640A
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US3047763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |