US2595294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of iron for use in the manufacture of cast iron products
Assignee: Individual
•
Filing: 1950-05-16
•
Granted: 1952-05-06
•
Expires: 1970-05-16
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Reece
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:34
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE METHOD OF PRODUCING CAST IRON AND CONTROLLED PHYSICAL PROPERTIES INCLUDING DESIRED TENSILE STRENGTH, WHICH COMPRISES CHARGING INTO A MELTING FURNACE A MIXTURE OF FERROUS MATERIALS HAVING A TOTAL CARBON ACTIVITY COEFFICIENT IN PERCENT SUBSTANTIALLY AS INDICATED IN FIGURE 6 OF THE DRAWINGS WITH THE TOTAL CARBON ACTIVITY COEFFICIENT OF THE CHARGE PLOTTED AGAINST TENSILE
Claim 2
Independent Claim
55 words
THE METHOD OF PRODUCING CAST IRON AND CONTROLLED PHYSICAL PROPERTIES INCLUDING DESIRED TENSILE STRENGTH, WHICH COMPRISES CHARGING INTO A MELTING FURNACE A MIXTURE OF FERROUS MATERIALS HAVING A TOTAL CARBON ACTIVITY COEFFICIENT IN PERCENT SUBSTANTIALLY AS INDICATED IN FIGURE 6 OF THE DRAWINGS WITH THE TOTAL CARBON ACTIVITY COEFFICIENT OF THE CHARGE PLOTTED AGAINST TENSILE
References Cited (Backward Citations)
US2467406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |