Patent US3020182A successfully refreshed from Google Patents.
US3020182A
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Ceramic-to-metal seal and method of making the same
Assignee: General Electric Co
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Filing: 1958-09-26
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Granted: 1962-02-06
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Expires: 1978-09-26
Abstract
No abstract record available.
Inventors
- 👤 Franklin W Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:27
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/301; C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C04B37/026; C23; C23C; C23C4/00; C23C4/02; C23C4/12; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/062; C04B2237/068; C04B2237/12; C04B2237/121; C04B2237/123; C04B2237/124; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/343; C04B2237/40; C04B2237/50; C04B2237/52; C04B2237/525; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12021; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/12063; Y10T428/12139; Y10T428/25; Y10T428/252
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A CERAMIC-TO-METAL SEAL STRUCRURE COMPRISING A CERAMIC BODY AND A METAL PART LIAVING SEAL SURFACES JOINED TOGETHER BY A COMPOSITE CERAMIC METAL MATERIAL THEREBETWEEN COMPOSED OF A MIXTURE OF CERAMIC AND METALLIC PARTICLES, WHEREIN THE PROPORTION OF CERAMIC PARTICLES TO METALLIC PARTICULES DECREASED IN A DIRECTION AWAY FROM SAID CERAMIC BODY TO PROVIDE A METAL LAYER OF SUBSTANTIAL THICKNESS, SAID METAL PART BEING HERMETICALLY JOINED TO THE SURFACE OF SAID METAL LAYER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |