US2444456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharging system for internal-combustion engines
Assignee: JARVIS C MARBLE
•
Filing: 1943-08-19
•
Granted: 1948-07-06
•
Expires: 1963-08-19
Abstract
No abstract record available.
Inventors
- 👤 Lysholm Alf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:48
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/04; F02B29/00; F02B29/04; F02B29/0406; F02B29/0425; F02B29/0431; F02B39/00; F02B39/02; F02B39/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE435928C
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US2305810A
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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) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |