US3275901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed electrical assembly
Assignee: General Electric Co
•
Filing: 1963-03-14
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Granted: 1966-09-27
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Robert B Merritt
- 👤 Raymond M Trewhella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:14
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/10; H01G2/103; C; C03; C03C; C03C27/00; C03C27/02; C03C29/00; C03C3/00; C03C3/12; C03C3/14; C03C3/145; C03C3/15; H01G9/00; H01G9/004; H01G9/08; H01G9/10; H01M; H01M50/00; H01M50/10; H01M50/183; H01M50/186; H01M50/19; H01M50/191; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A HERMETICALLY SEALED ELECTRICAL ASSEMBLY COMPRISING, IN COMBINATION, A CASING CONTAINING AN ELECTROLYTE AND AN ELECTRICAL COMPONENT IMMERSED THEREIN, SAID CASING HAVING A TERMINAL LEAD EXTENDING OUTWARDLY THROUGH SAID OPENING AND COMPOSED OF A FILM-FORMING METAL WIRE HAVING A DIELECTRIC OXIDE FILM FORMED THEREON, AND A CLOSURE HERMETICALLY SEALING SAID OPENING AND ELECTRICALLY INSULATING SAID TERMINAL LEAD FROM SAID CASING, SAID CLOSURE COMPRISING METAL RING MEANS JOINED TO SAID CASING AND HAVING GLASS MATERIAL RETAINED THEREIN FUSED SEALING RELATION WITH SAID RING MEANS AND WITH SAID TERMINAL LEAD PASSING THERETHROUGH, SAID GLASS MATERIAL AND SAID TERMINAL LEAD HAVING SUBSTANTIALLY MATCHING COEFFICIENTS OF THERMAL EXPANSION, AND SAID RING MEANS HAVING A COEFFICIENT OF THERMAL EXPANSION AT LEAST SUBSTANTIALLY EQUAL TO THAT A SAID GLASS MATERIAL, SAID GLASS MATERIAL HAVING THE APPROXIMATE COMPOSITION OF 35% BAO, 25% AL2O3, 35-40% B2O3, AND 0-5% CEO2.
Claim 2
Dependent Claim
141 words
A HERMETICALLY SEALED ELECTRICAL ASSEMBLY COMPRISING, IN COMBINATION, A CASING CONTAINING AN ELECTROLYTE AND AN ELECTRICAL COMPONENT IMMERSED THEREIN, SAID CASING HAVING A TERMINAL LEAD EXTENDING OUTWARDLY THROUGH SAID OPENING AND COMPOSED OF A FILM-FORMING METAL WIRE HAVING A DIELECTRIC OXIDE FILM FORMED THEREON, AND A CLOSURE HERMETICALLY SEALING SAID OPENING AND ELECTRICALLY INSULATING SAID TERMINAL LEAD FROM SAID CASING, SAID CLOSURE COMPRISING METAL RING MEANS JOINED TO SAID CASING AND HAVING GLASS MATERIAL RETAINED THEREIN FUSED SEALING RELATION WITH SAID RING MEANS AND WITH SAID TERMINAL LEAD PASSING THERETHROUGH, SAID GLASS MATERIAL AND SAID TERMINAL LEAD HAVING SUBSTANTIALLY MATCHING COEFFICIENTS OF THERMAL EXPANSION, AND SAID RING MEANS HAVING A COEFFICIENT OF THERMAL EXPANSION AT LEAST SUBSTANTIALLY EQUAL TO THAT A SAID GLASS MATERIAL, SAID GLASS MATERIAL HAVING THE APPROXIMATE COMPOSITION OF 35% BAO, 25% AL2O3, 35-40% B2O3, AND 0-5% CEO2.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |