Patent US2432004A successfully refreshed from Google Patents.
US2432004A
Expired / Lapsed
US
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Coolant pump
Assignee: Graymills Corp
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Filing: 1943-06-26
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Granted: 1947-12-02
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Expires: 1963-06-26
Abstract
No abstract record available.
Inventors
- 👤 Gray John De Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:54
CPC Classifications
F; F04; F04C; F04C15/00; F04C2/00; F04C2/08; F04C2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US459299A
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US589515A
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US822622A
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US916663A
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US1296077A
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US1936853A
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US1930293A
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US2033812A
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US2170464A
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US2273214A
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US2294705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |