US2696376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjsutable floor jack for a continuous mining apparatus
Assignee: Joy Manufacturing Co
•
Filing: 1950-04-05
•
Granted: 1954-12-07
•
Expires: 1970-04-05
Abstract
No abstract record available.
Inventors
- 👤 Barrett Arthur Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:55
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1761060A
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US1979265A
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US1941008A
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US1975278A
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US2180359A
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US2093476A
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US2165675A
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US2389921A
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US2411258A
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US2472294A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |