US2909808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing powdered or granular metallic material
Assignee: Deutsche Edelstahlwerke AG
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Filing: 1954-11-29
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Granted: 1959-10-27
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Expires: 1974-11-29
Abstract
No abstract record available.
Inventors
- 👤 Frehn Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08; B22F9/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN THE PREPARATION OF A PULVERIZED PRODUCT FROM AT LEAST ONE METALLIC MATERIAL SELECTED FROM THE GROUPS CONSISTING OF FERROUS METALS, FERROUS ALLOYS AND ALUMINUM AND NICKLE ALLOYS BY A PROCESS INVOLVING THE STEPS OF MELTING SAID METALLIC MATERIAL AND ATOMIZING THE MELT INTO THE FINELY DIVIDED STATE, THE IMPROVEMENT WHICH COMPRISES ADDING BORON TO THE SAID MELT PRIOR TO ATOMIZING SAME, IN THE FORM OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF ELEMENTARY BORON, A BORON ALLOY AND A BORON COMPOUND, IN AN AMOUNT FROM 0.1% TO 3%.
Claim 2
Dependent Claim
89 words
IN THE PREPARATION OF A PULVERIZED PRODUCT FROM AT LEAST ONE METALLIC MATERIAL SELECTED FROM THE GROUPS CONSISTING OF FERROUS METALS, FERROUS ALLOYS AND ALUMINUM AND NICKLE ALLOYS BY A PROCESS INVOLVING THE STEPS OF MELTING SAID METALLIC MATERIAL AND ATOMIZING THE MELT INTO THE FINELY DIVIDED STATE, THE IMPROVEMENT WHICH COMPRISES ADDING BORON TO THE SAID MELT PRIOR TO ATOMIZING SAME, IN THE FORM OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF ELEMENTARY BORON, A BORON ALLOY AND A BORON COMPOUND, IN AN AMOUNT FROM 0.1% TO 3%.
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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |