Patent US2779155A successfully refreshed from Google Patents.
US2779155A
Expired / Lapsed
US
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Turbocharging system for internal combustion engines
Assignee: Worthington Corp
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Filing: 1953-11-19
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Granted: 1957-01-29
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Expires: 1973-11-19
Abstract
No abstract record available.
Inventors
- 👤 William M Kauffmann
- 👤 Harold W Whiting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:39
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/14; F02B37/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T137/00; Y10T137/0971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673306A
Cited
GB267149A
Cited
US2082780A
Cited
GB363325A
Cited
US2142596A
Cited
US2296268A
Cited
US2380777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |