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US1761801A
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Automatic tilting-type concrete-mixing machine
Assignee: Koehring Co
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Filing: 1928-09-22
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Granted: 1930-06-03
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Expires: 1948-09-22
Abstract
No abstract record available.
Inventors
- 👤 John F Robb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:43
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/02; B28C7/028; B28C5/00; B28C5/08; B28C5/18; B28C5/1825; B28C5/1837; B28C7/04; B28C7/06; B28C7/08; B28C7/0835; B28C7/0847; B28C7/0852
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-06-02 | 1933-12-02 | 1934-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-02 | 1937-12-02 | 1938-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-02 | 1941-12-02 | 1942-06-03 | $7700.00 | Window Closed / Lapsed |