US2509956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power punch
Assignee: Individual
•
Filing: 1946-11-01
•
Granted: 1950-05-30
•
Expires: 1966-11-01
Abstract
No abstract record available.
Inventors
- 👤 Conrad H Benoit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:45
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/42; B21; B21D; B21D28/00; B21D28/002; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53039; Y10T29/53061; Y10T83/00; Y10T83/869; Y10T83/872; Y10T83/8765; Y10T83/8768; Y10T83/8776; Y10T83/8785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US141775A
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US323652A
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US631769A
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US915438A
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US1273390A
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US1582217A
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GB336224A
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DE525862C
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US1807170A
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FR705398A
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US1884668A
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US1940980A
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US1958132A
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US2117880A
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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) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |