Patent US710212A successfully refreshed from Google Patents.
US3256136A
Expired / Lapsed
US
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Ceramic material
Assignee: Consolidated Electrodynamics Corp
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Filing: 1961-05-11
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Granted: 1966-06-14
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Expires: 1981-05-11
Abstract
No abstract record available.
Inventors
- 👤 Leland G Cole
- 👤 Ralph L Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:53
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/24; C03C3/00; C03C3/04; C03C3/076; C03C3/102; C03C3/105; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/10; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/343
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IN ELECTRODE SEALS IN WHICH A CERAMIC MATERIAL IS BONDED TO AN ELECTRICALLY CONDUCTIVE METALLIC ELECTRODE THE IMPROVEMENT WHEREIN THE CERAMIC MATERIAL IS A HIGHTEMPERATURE RADIATION-RESISTANT BORON-FREE GLASS INSULATING MATERIAL WHICH BY WEIGHT CONSISTS ESENTIALLY OF FROM 5% TO 30% BISMUTH OXIDE, FROM 15% TO 35% SILICON DIOXIDE, AND FROM 25% TO 45% LEAD OXIDE.
Claim 2
Dependent Claim
55 words
IN ELECTRODE SEALS IN WHICH A CERAMIC MATERIAL IS BONDED TO AN ELECTRICALLY CONDUCTIVE METALLIC ELECTRODE THE IMPROVEMENT WHEREIN THE CERAMIC MATERIAL IS A HIGHTEMPERATURE RADIATION-RESISTANT BORON-FREE GLASS INSULATING MATERIAL WHICH BY WEIGHT CONSISTS ESENTIALLY OF FROM 5% TO 30% BISMUTH OXIDE, FROM 15% TO 35% SILICON DIOXIDE, AND FROM 25% TO 45% LEAD OXIDE.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |