Patent US2956464A successfully refreshed from Google Patents.
US2956464A
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Notching press with work indexing means and tool disabling means
Assignee: Emhart Manufacturing Co
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Filing: 1955-09-29
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Granted: 1960-10-18
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Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Charron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:21
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/22; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4582; Y10T83/4607; Y10T83/647; Y10T83/654; Y10T83/6545; Y10T83/6547; Y10T83/6561; Y10T83/869; Y10T83/8759; Y10T83/8761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1510261A
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US1856175A
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US2148221A
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US2433117A
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US2548562A
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US2576328A
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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) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |