Patent US1847418A successfully refreshed from Google Patents.
US1847418A
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Lubricating system for piston machines
Assignee: Curtis Manufacturing Co Inc
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Filing: 1927-06-02
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Granted: 1932-03-01
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Expires: 1947-06-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Steedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:11
CPC Classifications
F; F01; F01M; F01M9/00; F01M9/06; F01M1/00; F01M1/02; F01M1/06; F01M11/00; F01M9/12; F16; F16N; F16N7/00; F16N7/14; F16N7/16; F16N7/20; F16N7/22; F16N7/24; F16N7/36
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) | 1935-03-01 | 1935-08-31 | 1936-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-01 | 1939-08-31 | 1940-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-01 | 1943-08-31 | 1944-03-01 | $7700.00 | Window Closed / Lapsed |