US2479353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for reducing thickness of thin sheet material
Assignee: RCA Corp
•
Filing: 1943-11-01
•
Granted: 1949-08-16
•
Expires: 1963-11-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Hansell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/60; B; B21; B21B; B21B1/00; B21B1/22; B21B1/222; B21B45/00; B21B45/004; H05B6/64; H05B6/78; H05B6/788
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1977214A
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US2051949A
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US2169711A
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US2226448A
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US2332803A
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US2335190A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |