Patent US3265920A successfully refreshed from Google Patents.
US2446752A
Expired / Lapsed
US
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Material feeding device
Assignee: Pneumatic Scale Corp
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Filing: 1945-07-31
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Granted: 1948-08-10
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Expires: 1965-07-31
Abstract
No abstract record available.
Inventors
- 👤 Fiddyment Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:45
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US447072A
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US804022A
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US2031369A
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US2098034A
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US2329984A
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US2333435A
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US2340190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |