US2494742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine construction and cooling method
Assignee: NAT PRESSURE COOKER CO
•
Filing: 1947-02-14
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Granted: 1950-01-17
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Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Gilbert E Buske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:26
CPC Classifications
F; F02; F02B; F02B61/00; F02B61/04; F02B61/045; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02F; F02F1/00; F02F1/02; F02F1/10; F02F1/108; F02B75/02; F02B2075/022; F02B2075/025; F02B2075/1804; F02B2075/1808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US743556A
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US1500668A
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US1375110A
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US1457944A
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US1434348A
Cited
US1754689A
Cited
US2063825A
Cited
US2227247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |