US2803942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stroke-cycle internal combustion engines with scavenging and charging compressors driven by exhaust gas turbines
Assignee: Goetaverken AB
•
Filing: 1954-01-08
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Granted: 1957-08-27
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Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
- 👤 Johansson Johan Erik
- 👤 Kyrlin Uno Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:16
CPC Classifications
F; F02; F02B; F02B39/00; F02B39/02; F02B39/08; F02B37/00; F02B37/04; F02B37/11; F02B37/12; F02B37/14; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB206845A
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US1516734A
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US1711095A
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GB288217A
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US2055300A
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US2019745A
Cited
US2146369A
Cited
US2196540A
Cited
GB488396A
Cited
US2278181A
Cited
US2346587A
Cited
US2585968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |