Patent US2445501A successfully refreshed from Google Patents.
US2445501A
Expired / Lapsed
US
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Hopper assembly with solenoid operated gate
Assignee: Individual
•
Filing: 1945-03-28
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Granted: 1948-07-20
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Expires: 1965-03-28
Abstract
No abstract record available.
Inventors
- 👤 Edward J Vagim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:28
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/582; G; G01; G01G; G01G13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1051273A
Cited
US1251397A
Cited
US1857734A
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US1981697A
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US2019502A
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US1988122A
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US1983093A
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AU1817934A
Cited
US2179120A
Cited
US2335364A
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US2381505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |