Patent US4377672A successfully refreshed from Google Patents.
US2934869A
Expired / Lapsed
US
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Article detecting mechanism
Assignee: F B REDINGTON Co
•
Filing: 1957-11-08
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Granted: 1960-05-03
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Expires: 1977-11-08
Abstract
No abstract record available.
Inventors
- 👤 Harry E Engleson
- 👤 Elmer D Sramek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:29
CPC Classifications
B; B65; B65B; B65B57/00; B65B57/02; B65B57/08; B65B57/10; B65B57/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2103302A
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US2514946A
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US2645396A
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US2715807A
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US2646656A
Cited
US2750722A
Cited
US2834165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |