Patent US2543344A successfully refreshed from Google Patents.
US2543344A
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Arrangement for drawing sand and sand mixtures from a container
Assignee: OMO AG
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Filing: 1945-09-29
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Granted: 1951-02-27
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Expires: 1965-09-29
Abstract
No abstract record available.
Inventors
- 👤 Tutsch Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:32
CPC Classifications
B; B24; B24C; B24C7/00; B24C7/0092; B65; B65G; B65G53/00; B65G53/04; B65G53/06; B65G53/08; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/46; B65G65/463; E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US192285A
Cited
US1013379A
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US859863A
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US837113A
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US1456165A
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US1376043A
Cited
US1866682A
Cited
US1966325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |