Patent US2596703A successfully refreshed from Google Patents.
US2596703A
Expired / Lapsed
US
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Slush pump piston
Assignee: United States Steel Corp
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Filing: 1948-07-27
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Granted: 1952-05-13
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Expires: 1968-07-27
Abstract
No abstract record available.
Inventors
- 👤 August R Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/14; F04B53/144; F04B53/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1273728A
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US2267882A
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US2216291A
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US2218638A
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US2306800A
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US2277501A
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US2388520A
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US2450693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |