US2624474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulated material feeding apparatus
Assignee: HANNAH JANE HAPMAN
•
Filing: 1949-08-15
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Granted: 1953-01-06
•
Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Henry W Hapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/44; F; F23; F23K; F23K3/00; F23K2203/00; F23K2203/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR413272A
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US1048019A
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US1338514A
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US1495450A
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US2007874A
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US2035018A
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US2156878A
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US2372798A
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US2388399A
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US2420217A
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US2428995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |