Patent US3740894A successfully refreshed from Google Patents.
Patent US2569487A successfully refreshed from Google Patents.
US2569487A
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Intermittent movement with improved claw action
Assignee: Mitchell Camera Corp
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Filing: 1949-06-13
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Granted: 1951-10-02
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Expires: 1969-06-13
Abstract
No abstract record available.
Inventors
- 👤 George A Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:39
CPC Classifications
F; F16; F16H; F16H27/00; F16H27/02; G; G03; G03B; G03B1/00; G03B1/18; G03B1/20; G03B1/22; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1609268A
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GB386042A
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US1900876A
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FR727898A
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US1914398A
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US2076919A
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US2124167A
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US2267409A
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US2448519A
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US2475622A
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US2484348A
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US2481706A
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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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |