US2437737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch operating mechanism
Assignee: Marion Power Shovel Co Inc
•
Filing: 1943-09-15
•
Granted: 1948-03-16
•
Expires: 1963-09-15
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Halby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:36
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/75; F16D25/00; F16D25/04; F16D25/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US847575A
Cited
US993825A
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US1900448A
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US2025635A
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US1942489A
Cited
US2278068A
Cited
US2370360A
Cited
US2395239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |