US2861327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applying protective metal coatings on molybdenum
Assignee: Westinghouse Electric Corp
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Filing: 1956-09-12
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Granted: 1958-11-25
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Expires: 1976-09-12
Abstract
No abstract record available.
Inventors
- 👤 James H Bechtold
- 👤 John P Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/02; C21D8/0278; C21D8/0284; C23; C23C; C23C28/00; C23C28/02; C23C28/023; C23F; C23F17/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/937; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12639; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12833; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12875; Y10T428/12903; Y10T428/1291; Y10T428/12917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN THE PROCESS OF PRODUCING WELL BONDED, OXIDATIONRESISTANT COATINGS ON A MOLYBDENUM BODY, THE STEPS COMPRISING (1) PREPARING AN ASSEMBLY COMPRISING A MOLYBDENUM BODY COMPLETELY ENCLOSED AND SEALED IN A RELATIVELY THICK CASING OF AT LEAST ONE OXIDATION-RESISTANT METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT AND ALLOYS COMPRISING AT LEAST 50% THEREOF AND THE BALANCE BEING AT LEAST ONE OF THE GROUP CONSISTING OF IRON AND CHROMIUM AND A RELATIVELY THIN INTERMEDIATE BONDING LAYER DISPLACED BETWEEN THE MOLYBENUM BODY AND THE CASING OF A METAL SELECTED FROM THE GROUP CONSISTING OF PALLADIUM, COPPER, CHROMIUM AND AN ALLOY COMPRISING, BY WEIGHT, FROM 60% TO 70% NICKEL AND THE BALANCE BEING SUBSTANTIALLY ALL COPPER, (2) HEATING THE ASSEMBLY TO A TEMPERATURE OF FROM 870*C. TO 1320* C., AND (3) ROLLING THE HEATED ASSEMBLY TO EFFECT A REDUCTION OF A LEAST 30% IN THE CROSS-SECTIONAL AREA AND TO EFFECT INTIMATE BONDING OF THE MOLYBDENUM BODY, THE INTERMEDIATE LAYER AND THE CASTING.
Claim 2
Dependent Claim
160 words
IN THE PROCESS OF PRODUCING WELL BONDED, OXIDATIONRESISTANT COATINGS ON A MOLYBDENUM BODY, THE STEPS COMPRISING (1) PREPARING AN ASSEMBLY COMPRISING A MOLYBDENUM BODY COMPLETELY ENCLOSED AND SEALED IN A RELATIVELY THICK CASING OF AT LEAST ONE OXIDATION-RESISTANT METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT AND ALLOYS COMPRISING AT LEAST 50% THEREOF AND THE BALANCE BEING AT LEAST ONE OF THE GROUP CONSISTING OF IRON AND CHROMIUM AND A RELATIVELY THIN INTERMEDIATE BONDING LAYER DISPLACED BETWEEN THE MOLYBENUM BODY AND THE CASING OF A METAL SELECTED FROM THE GROUP CONSISTING OF PALLADIUM, COPPER, CHROMIUM AND AN ALLOY COMPRISING, BY WEIGHT, FROM 60% TO 70% NICKEL AND THE BALANCE BEING SUBSTANTIALLY ALL COPPER, (2) HEATING THE ASSEMBLY TO A TEMPERATURE OF FROM 870*C. TO 1320* C., AND (3) ROLLING THE HEATED ASSEMBLY TO EFFECT A REDUCTION OF A LEAST 30% IN THE CROSS-SECTIONAL AREA AND TO EFFECT INTIMATE BONDING OF THE MOLYBDENUM BODY, THE INTERMEDIATE LAYER AND THE CASTING.
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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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |