Patent US2737897A successfully refreshed from Google Patents.
US2737897A
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US
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High altitude fuel system
Assignee: Borg Warner Corp
•
Filing: 1951-01-05
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Granted: 1956-03-13
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Expires: 1971-01-05
Abstract
No abstract record available.
Inventors
- 👤 Norman B Dewees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:40
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/18; F04; F04D; F04D13/00; F04D13/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE141014C
Cited
US167136A
Cited
US345761A
Cited
US1554472A
Cited
US1664488A
Cited
US1757670A
Cited
US1739000A
Cited
FR752623A
Cited
US2013079A
Cited
GB445005A
Cited
US2129808A
Cited
US2332707A
Cited
US2451944A
Cited
US2328328A
Cited
US2368530A
Cited
US2382412A
Cited
US2446552A
Cited
GB574140A
Cited
US2419146A
Cited
US2440363A
Cited
US2416193A
Cited
US2623357A
Cited
GB607830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |