US2843646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated metal ceramic
Assignee: Union Carbide Corp
•
Filing: 1953-06-09
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Granted: 1958-07-15
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Expires: 1973-06-09
Abstract
No abstract record available.
Inventors
- 👤 Louis A Conant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; H01B1/16; G; G01; G01K; G01K1/00; G01K1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49117; Y10T29/49204; Y10T428/00; Y10T428/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A CERAMIC OBJECT ADAPTED FOR CONTACT WITH DELETERIOUS REAGENTS SUCH AS MOLTEN METALS COMPRISING A REFRACTORY METAL CERAMIC BASE CONTAINING INTIMATELY DISPRESED MINUTE PARTICLES OF ABOUT 50% TO 75% BY VOLUME OF CHROMIUM METAL AND A REFRACTORY METAL OXIDE WITH SAID CHROMIUM METAL FORMING A CONTINUOUS METAL PHASE THEREIN AND HAVING COHESIVELY AND THERMALLY SECURED TO AT LEAST ONE CONTACT SURFACE OF SAID REFRACTORY METAL CERAMIC BASE A REFRACTORY CERAMIC COATING CONTAINING THE SAME REFRACTORY METAL OXIDE WHICH IS INTIMATELY DISPERESED WITHIN SAID REFRACTORY METAL CERAMIC BASE, SAID REFRACTORY CERAMIC COATING HAVING A THICKNERSS BETWEEN ABOUT 0.001 AND 0.020 INCH.
Claim 2
Dependent Claim
100 words
A CERAMIC OBJECT ADAPTED FOR CONTACT WITH DELETERIOUS REAGENTS SUCH AS MOLTEN METALS COMPRISING A REFRACTORY METAL CERAMIC BASE CONTAINING INTIMATELY DISPRESED MINUTE PARTICLES OF ABOUT 50% TO 75% BY VOLUME OF CHROMIUM METAL AND A REFRACTORY METAL OXIDE WITH SAID CHROMIUM METAL FORMING A CONTINUOUS METAL PHASE THEREIN AND HAVING COHESIVELY AND THERMALLY SECURED TO AT LEAST ONE CONTACT SURFACE OF SAID REFRACTORY METAL CERAMIC BASE A REFRACTORY CERAMIC COATING CONTAINING THE SAME REFRACTORY METAL OXIDE WHICH IS INTIMATELY DISPERESED WITHIN SAID REFRACTORY METAL CERAMIC BASE, SAID REFRACTORY CERAMIC COATING HAVING A THICKNERSS BETWEEN ABOUT 0.001 AND 0.020 INCH.
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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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |