US2446824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-bending machine with holddown means to prevent die deflection
Assignee: Individual
•
Filing: 1945-06-21
•
Granted: 1948-08-10
•
Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Lee B Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:30
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/06; B21D7/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1785116A
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US2002563A
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US2018040A
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US2169669A
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US2287933A
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US2327440A
Cited
US2275174A
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US2312122A
Cited
US2378923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |