Patent US2417636A successfully refreshed from Google Patents.
US2417636A
Expired / Lapsed
US
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Engine heating cover system
Assignee: NEW CASTLE PRODUCTS
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Filing: 1943-02-08
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Granted: 1947-03-18
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Expires: 1963-02-08
Abstract
No abstract record available.
Inventors
- 👤 John N Ditzler
- 👤 Oberdorfer Carol
- 👤 Henry D Oberdorfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:12
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02N19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US332371A
Cited
US1240133A
Cited
US1392522A
Cited
US1862114A
Cited
US2015982A
Cited
US2078116A
Cited
US2295177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |