Patent US2578000A successfully refreshed from Google Patents.
US2578000A
Expired / Lapsed
US
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Water tank for concrete mixers
Assignee: Worthington Pump and Machinery Corp
•
Filing: 1946-07-19
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Granted: 1951-12-11
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Expires: 1966-07-19
Abstract
No abstract record available.
Inventors
- 👤 George W Cronk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:28
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/12; B28C7/122; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275; Y10T137/8292; Y10T137/8309; Y10T137/8359; Y10T137/8593; Y10T137/86236; Y10T137/86348; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US245528A
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US373537A
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US1383708A
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US1495532A
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US1732599A
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US1795431A
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US1930618A
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US2316132A
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US2374970A
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US2428729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |