Patent US2622722A successfully refreshed from Google Patents.
US2622722A
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US
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Device for handling grain
Assignee: Individual
•
Filing: 1949-10-12
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Granted: 1952-12-23
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Expires: 1969-10-12
Abstract
No abstract record available.
Inventors
- 👤 Lucas Samuel Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:53
CPC Classifications
B; B65; B65G; B65G69/00; B65G2814/00; B65G2814/02; B65G2814/0241; B65G2814/0288
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191220938A
Cited
US1576366A
Cited
US2047867A
Cited
US2081182A
Cited
US2196390A
Cited
US2210505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |