Patent US2569209A successfully refreshed from Google Patents.
Patent US3394686A successfully refreshed from Google Patents.
US3394686A
Expired / Lapsed
US
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Method of high-level supercharging for diesel engines and practical application thereof
Assignee: Individual
•
Filing: 1965-01-15
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Granted: 1968-07-30
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Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Kreglewski Adam
- 👤 Kreglewski Witold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:32
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/04; F02B25/00; F02B29/00; F02B29/04; F02B33/00; F02B33/02; F02B33/06; F02B33/28; F02B33/30; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2720/00; F02B2720/23; F02B2720/233; F02B29/0481; F02B3/00; F02B3/06; F02M; F02M2700/00; F02M2700/33; F02M2700/331; F02M2700/333; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |