US2493718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever engine action
Assignee: LEVER MOTORS Corp
•
Filing: 1944-09-14
•
Granted: 1950-01-03
•
Expires: 1964-09-14
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Chronic
- 👤 Clifford A Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:36
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/04; F02B75/048; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/22; F16H21/32; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US242401A
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US247741A
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US610488A
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US1092915A
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US1350178A
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US1384343A
Cited
US1567172A
Cited
US1673280A
Cited
US1810214A
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US1874194A
Cited
US1978058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |