US2634006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp-operating mechanism for rotary car dumpers
Assignee: Heyl and Patterson Inc
•
Filing: 1947-01-31
•
Granted: 1953-04-07
•
Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 Harry E Criner
- 👤 Bennie A Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:17
CPC Classifications
B; B65; B65G; B65G67/00; B65G2814/00; B65G2814/03; B65G2814/0347; B65G2814/0356; B65G2814/0359; B65G2814/0361; B65G2814/0362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1605660A
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US1508997A
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US1452606A
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US1579927A
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US1654919A
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US1812040A
Cited
US1821217A
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US1768849A
Cited
US2062503A
Cited
US2381723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |