Patent US2874538A successfully refreshed from Google Patents.
US2874538A
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Thrust reverser for jet engine
Assignee: MARQUARDT AIRCRAFT Co
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Filing: 1957-03-22
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Granted: 1959-02-24
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Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 Richard G Laucher
- 👤 Frank A Coss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:29
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/12; F02K1/1253; F02K1/54; F02K1/56; F02K1/62; F02K1/625; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18944; Y10T74/21; Y10T74/2142; Y10T74/2151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2693078A
Cited
FR1092654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |