Patent DE746982C successfully refreshed from Google Patents.
US2994783A
Expired / Lapsed
US
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Automatic control system for perforating machines and the like
Assignee: Western Gear Machinery Co
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Filing: 1957-12-26
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Granted: 1961-08-01
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Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 Floyd W Looschen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:43
CPC Classifications
B; B23; B23D; B23D36/00; B23D36/0008; B23D36/0033; B23D36/0041; B23D36/005; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/527; Y10T83/53; Y10T83/533; Y10T83/536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |