US3244506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool material
Assignee: Allegheny Ludlum Steel Corp
•
Filing: 1964-09-08
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Granted: 1966-04-05
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Orville W Reen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:26
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; C22C33/0257; C22C33/0278; C22C1/00; C22C1/04; C22C1/05; C22C1/051; C22C32/00; C22C32/0047; C22C32/0052; C22C33/0292
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A METHOD OF PRODUCING A SOLID ALLOY SUITABLE FOR FORMING INTO A CUTTING TOOL, SAID METHOD COMPRISING, PROVIDING ATOMIZED PRE-ALLOYED POWDER OF SAID ALLOY HAVING A PARTICLE SIZE OF NOT MORE THAN .25" DIAMETER WITH A COMPOSITION CONSISTING ESSENTIALLY OF, FROM ABOUT 0.60% TO ABOUT 5% CARBON, AT LEAST 30% CARBIDE-FORMING ELEMENTS SELECTED FROM THE GROUP CONSISTING OF CR, W, MO, TI, TA, CB, ZR, HF AND V AND THE REMAINDER M AND INCIDENTAL IMURITIES, WHEREIN M IS SELECTED FROM THE GROUP CONSISTING OF COBALT, IRON AND NICKEL, AND WHEREIN THE AMOUNT OF M EXCEEDS THE AMOUNT OF CHROMIUM,AND THE AMOUNT OF M EXCEEDS THE TOTAL AMOUNT OF CARBIDE FORMERS OTHER THAN CHROMIUM, AND THE TOTAL AMOUNT OF M PLUS CHROMIM IS AT LEAST 50%, COMPRESSING AND MECHANICALLY HOT WORKING SAID POWDER TO EFFECT A SOLID MATERIAL OF A DENSITY SUBSTANTIALLY EQUIVALENT TO THE ALLOY IN ITS CAST STATE.
Claim 2
Independent Claim
149 words
A METHOD OF PRODUCING A SOLID ALLOY SUITABLE FOR FORMING INTO A CUTTING TOOL, SAID METHOD COMPRISING, PROVIDING ATOMIZED PRE-ALLOYED POWDER OF SAID ALLOY HAVING A PARTICLE SIZE OF NOT MORE THAN .25" DIAMETER WITH A COMPOSITION CONSISTING ESSENTIALLY OF, FROM ABOUT 0.60% TO ABOUT 5% CARBON, AT LEAST 30% CARBIDE-FORMING ELEMENTS SELECTED FROM THE GROUP CONSISTING OF CR, W, MO, TI, TA, CB, ZR, HF AND V AND THE REMAINDER M AND INCIDENTAL IMURITIES, WHEREIN M IS SELECTED FROM THE GROUP CONSISTING OF COBALT, IRON AND NICKEL, AND WHEREIN THE AMOUNT OF M EXCEEDS THE AMOUNT OF CHROMIUM,AND THE AMOUNT OF M EXCEEDS THE TOTAL AMOUNT OF CARBIDE FORMERS OTHER THAN CHROMIUM, AND THE TOTAL AMOUNT OF M PLUS CHROMIM IS AT LEAST 50%, COMPRESSING AND MECHANICALLY HOT WORKING SAID POWDER TO EFFECT A SOLID MATERIAL OF A DENSITY SUBSTANTIALLY EQUIVALENT TO THE ALLOY IN ITS CAST STATE.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |