US2554047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic engine cooling and lubricating system and apparatus
Assignee: Jeffrey Manufacturing Co
•
Filing: 1947-06-04
•
Granted: 1951-05-22
•
Expires: 1967-06-04
Abstract
No abstract record available.
Inventors
- 👤 Sterling C Moon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/42; F16H61/423; F16H39/00; F16H61/433
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1312701A
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FR382537A
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US1338310A
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US1539616A
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GB234209A
Cited
US1755169A
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US1819966A
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US1899949A
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US1877285A
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US2331694A
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US2395333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |