Patent US1876648A successfully refreshed from Google Patents.
US1876648A
Expired / Lapsed
US
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Oil cooling device
Assignee: Motor Products Corp
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Filing: 1930-09-22
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Granted: 1932-09-13
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Expires: 1950-09-22
Abstract
No abstract record available.
Inventors
- 👤 Harold L Elfes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:05
CPC Classifications
F; F01; F01M; F01M5/00; F01M5/005; F01M5/007; F01P; F01P11/00; F01P11/08; F01P7/00; F01P7/02; F01P7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-09-13 | 1936-03-14 | 1936-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-13 | 1940-03-14 | 1940-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-13 | 1944-03-14 | 1944-09-13 | $7700.00 | Window Closed / Lapsed |