Patent US3057083A successfully refreshed from Google Patents.
US3057083A
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US
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Engine noise simulator
Assignee: ACF Industries Inc
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Filing: 1958-01-30
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Granted: 1962-10-09
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Expires: 1978-01-30
Abstract
No abstract record available.
Inventors
- 👤 Glenn H Franck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:07
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2533484A
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US2494594A
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US2521405A
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US2490487A
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US2510500A
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US2445712A
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US2842867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |