US2748932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for cold shaping steel
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1950-05-13
•
Granted: 1956-06-05
•
Expires: 1970-05-13
Abstract
No abstract record available.
Inventors
- 👤 Kaul Ben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:51
CPC Classifications
B; B21; B21K; B21K21/00; B21C; B21C23/00; B21C23/02; B21C23/03; B21J; B21J1/00; B21J1/02; B21J1/025; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/12243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR542043A
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GB469550A
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US2140775A
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US2183502A
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US2261304A
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US2251094A
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US2457626A
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US2533942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |