US2783530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal ceramic product
Assignee: Union Carbide Corp
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Filing: 1954-05-19
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Granted: 1957-03-05
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Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Louis A Conant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/001; C22C32/0015; C22C32/0031; Y; Y10; Y10S; Y10S264/00; Y10S264/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METAL CERAMIC COMPOSED OF 60% TO 95% BY VOLUME OF METAL, THE REMAINDER CERAMIC, THE METAL CONSTITUENT OF SAID METAL CERAMIC BEING COMPOSED OF CHROMIUM HAVING ALLOYED THEREWITH 0 TO 50 ATOM PERCENT OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND TUNGSTEN; THE CERAMIC CONSTITUENT OF SAID METAL CERAMIC BEING COMPOSED OF OXIDE OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, COLUMBIUM, AND TANTALUM AND HAVING ASSOCIATED THEREWITH 0% TO 95% BY WEIGHT OF ALUMINA, SAID OXIDE OF SAID TATANIUM GROUP METAL CONSTITUTING AT LEAST 0.7% BY VOLUME OF SAID METAL CERAMIC.
Claim 2
Dependent Claim
102 words
A METAL CERAMIC COMPOSED OF 60% TO 95% BY VOLUME OF METAL, THE REMAINDER CERAMIC, THE METAL CONSTITUENT OF SAID METAL CERAMIC BEING COMPOSED OF CHROMIUM HAVING ALLOYED THEREWITH 0 TO 50 ATOM PERCENT OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND TUNGSTEN; THE CERAMIC CONSTITUENT OF SAID METAL CERAMIC BEING COMPOSED OF OXIDE OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, COLUMBIUM, AND TANTALUM AND HAVING ASSOCIATED THEREWITH 0% TO 95% BY WEIGHT OF ALUMINA, SAID OXIDE OF SAID TATANIUM GROUP METAL CONSTITUTING AT LEAST 0.7% BY VOLUME OF SAID METAL CERAMIC.
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) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |