US2820534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic ceramic-metal seal and method of making the same
Assignee: General Electric Co
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Filing: 1954-04-22
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Granted: 1958-01-21
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Expires: 1974-04-22
Abstract
No abstract record available.
Inventors
- 👤 George W Hume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:45
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; B; B23; B23K; B23K35/00; B23K35/001; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/636; C04B35/6365; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/121; C04B2237/122; C04B2237/125; C04B2237/126; C04B2237/30; C04B2237/32; C04B2237/50; C04B2237/70; C04B2237/708; C04B2237/72; C04B2237/76; C04B2237/765; C04B2237/84; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618; Y10T428/12729; Y10T428/12736; Y10T428/12771; Y10T428/12806; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A HERMETICALLY SEALED CERAMIC-METAL STRUCTURE COMPRISING A CERAMIC, A LAYER THEREON OF AN ALLOY OF (1) A METAL CHOSEN FROM THE GROUP CONSISTING OF ZIRCONIUM AND TITANIUM AND COMBINATIONS AND ALLOYS THEREOF, AND OF (2) SOLDER AND A CAST METAL ON SAID ALLOY LAYER, SAID CAST
Claim 2
Dependent Claim
46 words
A HERMETICALLY SEALED CERAMIC-METAL STRUCTURE COMPRISING A CERAMIC, A LAYER THEREON OF AN ALLOY OF (1) A METAL CHOSEN FROM THE GROUP CONSISTING OF ZIRCONIUM AND TITANIUM AND COMBINATIONS AND ALLOYS THEREOF, AND OF (2) SOLDER AND A CAST METAL ON SAID ALLOY LAYER, SAID CAST
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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |