US2952598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of metallic carbides
Assignee: Compagnie de Saint Gobain SA
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Filing: 1958-07-15
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Granted: 1960-09-13
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Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Suchet Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:05
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/90; C01P; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF MAKING A CARBIDE OF A METALLIC ELEMENT OF THE 4TH, 5TH, AND 6TH GROUPS OF THE PERIODIC TABLE THAT COMPRISES SUBJECTING A MIXTURE OF A HYDROCARBON AND A VAPORIZABLE METALLIC HALIDE OF A METAL OF ONE OF SAID GROUPS IN VAPOR PHASE, TO HIGH-FREQUENCY ELECTRICAL DISCHARGE HAVING A MINIMUM FREQUENCY ABOUT 1 MEGACYCLE.
Claim 2
Independent Claim
56 words
A METHOD OF MAKING A CARBIDE OF A METALLIC ELEMENT OF THE 4TH, 5TH, AND 6TH GROUPS OF THE PERIODIC TABLE THAT COMPRISES SUBJECTING A MIXTURE OF A HYDROCARBON AND A VAPORIZABLE METALLIC HALIDE OF A METAL OF ONE OF SAID GROUPS IN VAPOR PHASE, TO HIGH-FREQUENCY ELECTRICAL DISCHARGE HAVING A MINIMUM FREQUENCY ABOUT 1 MEGACYCLE.
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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |