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Patent US2941842A successfully refreshed from Google Patents.
US2941842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloader for grain elevators, etc.
Assignee: Individual
•
Filing: 1957-12-16
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Granted: 1960-06-21
•
Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Edgar E Wishaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:12
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/06; B65G53/10; B65G53/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US681867A
Cited
US1686877A
Cited
US1796215A
Cited
US2027697A
Cited
US2303810A
Cited
US2530689A
Cited
US2858165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |