US2961325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cermet bodies
Assignee: American Lava Corp
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Filing: 1957-06-21
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Granted: 1960-11-22
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Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 Manville J Mayfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:18
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COMPACT, DENSE, HARD AND TOUGH, WEAR-RESISTANT, SINTERED CERMET BODY EXHIBITING IMPROVED CUTTING PERFORMANCE AND COSISTING ESSENTIALLY OF A CERAMIC MATRIX AND A DISCONTINOUS METALLIC PHASE DISTRIBUTED THROUGH OUT SAID CERAMIC MASTRIX, SAID CERAMIC MATRIX COMPRISING ALPHA ALUMINA CRYSTALS IN AN AMOUNT ACCOUNTING FOR AT LEAST ABOUT 80% OF THE WEIGHT OF SAID BODY AND SAID DISCONTINOUS METALLIC PHASE CONSISTING ESSENTIALLY OF NICKEL METAL ACCOUNTING FOR AT LEAST 0.1% AND NO MORE THAN ABOUT 7% OF THE WEIGHT OF SAID BODY.
Claim 2
Dependent Claim
81 words
A COMPACT, DENSE, HARD AND TOUGH, WEAR-RESISTANT, SINTERED CERMET BODY EXHIBITING IMPROVED CUTTING PERFORMANCE AND COSISTING ESSENTIALLY OF A CERAMIC MATRIX AND A DISCONTINOUS METALLIC PHASE DISTRIBUTED THROUGH OUT SAID CERAMIC MASTRIX, SAID CERAMIC MATRIX COMPRISING ALPHA ALUMINA CRYSTALS IN AN AMOUNT ACCOUNTING FOR AT LEAST ABOUT 80% OF THE WEIGHT OF SAID BODY AND SAID DISCONTINOUS METALLIC PHASE CONSISTING ESSENTIALLY OF NICKEL METAL ACCOUNTING FOR AT LEAST 0.1% AND NO MORE THAN ABOUT 7% OF THE WEIGHT OF SAID BODY.
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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |