US2873188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and agent for treating ferrous materials
Assignee: Union Carbide Corp
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Filing: 1956-02-10
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Granted: 1959-02-10
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Expires: 1976-02-10
Abstract
No abstract record available.
Inventors
- 👤 Chester E Bieniosek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:45
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/08; C22C33/10; C21; C21C; C21C1/00; C21C1/10; C21C1/105; C21C7/00; C21C7/04; C21C7/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A POWDERED TREATING AGENT FOR IMPROVING THE TENSILE STRENGTH AND DUCTILITY OF CAST IRON, SAID AGENT COMPRISING A MIXTURE OF A COMMINUTED NODULIZING AGENT, A COMMINUTED INOCULANT AND A COMMINUTED REFRACTORY MATERIAL, SAID REFRACTORY MATERIAL CONSTITUTING NOT MORE THAN 10% BY WEIGHT OF SAID MIXTURE AND HAVING PARTICLES NOT MORE THAN 200 MESH IN SIZE, SAID REFRACTORY MATERIAL FORMING A COATING ON THE PARTICLES OF SAID NODULIZING AGENT AND SAID INOCULANT, AND COATING SHIELDING SAID TREATING AGENT FROM THE EFFECTS OF HEAT PRELIMINARY TO ITS INTRODUCTION INTO SAID CAST IRON.
Claim 2
Dependent Claim
90 words
A POWDERED TREATING AGENT FOR IMPROVING THE TENSILE STRENGTH AND DUCTILITY OF CAST IRON, SAID AGENT COMPRISING A MIXTURE OF A COMMINUTED NODULIZING AGENT, A COMMINUTED INOCULANT AND A COMMINUTED REFRACTORY MATERIAL, SAID REFRACTORY MATERIAL CONSTITUTING NOT MORE THAN 10% BY WEIGHT OF SAID MIXTURE AND HAVING PARTICLES NOT MORE THAN 200 MESH IN SIZE, SAID REFRACTORY MATERIAL FORMING A COATING ON THE PARTICLES OF SAID NODULIZING AGENT AND SAID INOCULANT, AND COATING SHIELDING SAID TREATING AGENT FROM THE EFFECTS OF HEAT PRELIMINARY TO ITS INTRODUCTION INTO SAID CAST IRON.
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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |