US2105969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing ferrous sheet metal
Assignee: Inland Steel Co
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Filing: 1935-08-07
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Granted: 1938-01-18
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Expires: 1955-08-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Castle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:35
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/02; C21D8/0278; B; B21; B21B; B21B1/00; B21B1/22; B21B1/227; B21B1/24; B21B1/28; B21B1/38; B21B2267/00; B21B2267/10; B21B45/00; B21B45/004; C21D8/0221; C21D8/0236; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/303; Y10T29/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-01-17 | 1941-07-19 | 1942-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-17 | 1945-07-19 | 1946-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-17 | 1949-07-19 | 1950-01-18 | $7700.00 | Window Closed / Lapsed |