Patent US2656595A successfully refreshed from Google Patents.
US2656595A
Expired / Lapsed
US
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Chromium-alloyed corrosion-resist
Assignee: —
•
Filing: —
•
Granted: 1953-10-27
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Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:36
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/10; B22F2998/00; B22F2998/10; B22F2999/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SINTERED CAKE BODY OF POWDER PARTICLES WHICH IS READILY COMMINUTABLE INTO SOFT POWDER PARTICLES, THE PARTICLES OF SAID CAKE BODY BEING COMPOSED ESSENTIALLY OF AT LEAST ONE METAL OF THE GROUP CONSISTING OF IRON CONTAINING AT MOST ABOUT .2% CARBON, OF NICKEL, AND OF COBALT, AND MIXTURES AND ALLOYS OF SAID METALS, SAID CAKE BODY HAVING BEEN SUBJECTED TO A CHROMIUM-ALLOYING TREATMENT CAUSING AT LEAST THE SURFACE LAYER OF SAID PARTICLES TO BECOME ALLOYED WITH CHROMIUM DEPOSITED ON THE PARTICLES FROM A CHROMIUM COMPOUND AT ELEVATED TEMPERATURES, SAID CAKE BODY CONTAINING AT LEAST 3% CHROMIUM AND HAVING AT MOST A DENSITY OF ABOUT 5 GRAMS PER CUBIC CENTIMETER.
Claim 2
Dependent Claim
109 words
A SINTERED CAKE BODY OF POWDER PARTICLES WHICH IS READILY COMMINUTABLE INTO SOFT POWDER PARTICLES, THE PARTICLES OF SAID CAKE BODY BEING COMPOSED ESSENTIALLY OF AT LEAST ONE METAL OF THE GROUP CONSISTING OF IRON CONTAINING AT MOST ABOUT .2% CARBON, OF NICKEL, AND OF COBALT, AND MIXTURES AND ALLOYS OF SAID METALS, SAID CAKE BODY HAVING BEEN SUBJECTED TO A CHROMIUM-ALLOYING TREATMENT CAUSING AT LEAST THE SURFACE LAYER OF SAID PARTICLES TO BECOME ALLOYED WITH CHROMIUM DEPOSITED ON THE PARTICLES FROM A CHROMIUM COMPOUND AT ELEVATED TEMPERATURES, SAID CAKE BODY CONTAINING AT LEAST 3% CHROMIUM AND HAVING AT MOST A DENSITY OF ABOUT 5 GRAMS PER CUBIC CENTIMETER.
References Cited (Backward Citations)
GB598181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |