US2633698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbosupercharger means to heat intake of compression-ignition engine for starting
Assignee: Individual
•
Filing: 1948-02-05
•
Granted: 1953-04-07
•
Expires: 1968-02-05
Abstract
No abstract record available.
Inventors
- 👤 Nettel Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:40
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B33/00; F02B33/44; F02B33/443; F02B37/00; F02B37/12; F02B37/16; F02B37/164; F02B37/166; F02B47/00; F02B47/02; F02B47/04; F02B47/08; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |