Patent US2323431A successfully refreshed from Google Patents.
US2323431A
Expired / Lapsed
US
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Punching device
Assignee: Individual
•
Filing: 1942-05-12
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Granted: 1943-07-06
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Expires: 1962-05-12
Abstract
No abstract record available.
Inventors
- 👤 George F Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:13
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/32; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/2163; Y10T83/2166; Y10T83/2209; Y10T83/2213; Y10T83/748; Y10T83/7587; Y10T83/869; Y10T83/8742; Y10T83/8743; Y10T83/8752; Y10T83/8753; Y10T83/8776; Y10T83/8821; Y10T83/8828
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) | 1946-07-05 | 1947-01-04 | 1947-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-05 | 1951-01-04 | 1951-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-05 | 1955-01-04 | 1955-07-06 | $7700.00 | Window Closed / Lapsed |