Patent US2702335A successfully refreshed from Google Patents.
US2702335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically supported crankcase heater
Assignee: Individual
•
Filing: 1953-03-03
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Granted: 1955-02-15
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Expires: 1973-03-03
Abstract
No abstract record available.
Inventors
- 👤 Cordis Nat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:46
CPC Classifications
F; F01; F01M; F01M5/00; F01M5/02; F01M5/021
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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |