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US2844492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing heat resisting metallic materials and formed bodies
Assignee: Siemens Plania Werke AG
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Filing: 1954-02-23
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Granted: 1958-07-22
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Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Fitzer Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:21
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/06; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
METHOD OF PRODUCING HIGH-MELTING MATERIAL FROM A BASE METAL TAKEN FROM TRANSITION METALS OF THE FOURTH TO SIXTH GROUPS OF THE PERIODIC SYSTEM OF ELEMENTS BY REACTION AT ELEVATED TEMPERATURE OF ONE OF SAID METALS WITH A VAPORIZED HALIDE COMPOUND OF A SEMI-METAL TAKEN FROM THE GROUP CONSISTING OF SILICON AND BORON, COMPRISING FORMING A VAPORIZED HALIDE OF SAID SEMI-METAL, ACTIVATING SAID HALIDE PRIOR TO REACTION WITH THE BASE METAL BY LARGE AREA CONTACT AT ELEVATED TEMPERATURE WITH A CORRESPONDING METALLIC SEMI-METAL TO FORM AN UNSTABLE HALIDE COMPOUND, AND THEREAFTER CAUSING REACTION OF SAID ACTIVATED HALIDE COMPOUND WITH SAID BASE METAL, THE TEMPERATURE INCIDENT TO ACTIVATION OF SAID HALIDE COMPOUND EXCEEDING THE TEMPERATURE REQUIRED FOR REACTION WITH SAID BASE METAL.
Claim 2
Dependent Claim
120 words
METHOD OF PRODUCING HIGH-MELTING MATERIAL FROM A BASE METAL TAKEN FROM TRANSITION METALS OF THE FOURTH TO SIXTH GROUPS OF THE PERIODIC SYSTEM OF ELEMENTS BY REACTION AT ELEVATED TEMPERATURE OF ONE OF SAID METALS WITH A VAPORIZED HALIDE COMPOUND OF A SEMI-METAL TAKEN FROM THE GROUP CONSISTING OF SILICON AND BORON, COMPRISING FORMING A VAPORIZED HALIDE OF SAID SEMI-METAL, ACTIVATING SAID HALIDE PRIOR TO REACTION WITH THE BASE METAL BY LARGE AREA CONTACT AT ELEVATED TEMPERATURE WITH A CORRESPONDING METALLIC SEMI-METAL TO FORM AN UNSTABLE HALIDE COMPOUND, AND THEREAFTER CAUSING REACTION OF SAID ACTIVATED HALIDE COMPOUND WITH SAID BASE METAL, THE TEMPERATURE INCIDENT TO ACTIVATION OF SAID HALIDE COMPOUND EXCEEDING THE TEMPERATURE REQUIRED FOR REACTION WITH SAID BASE METAL.
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |