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US2620161A
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US
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Power shovel
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1947-06-26
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Granted: 1952-12-02
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Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Royer William Myrl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:25
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US563172A
Cited
US681941A
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US1413094A
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US1486923A
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US1830224A
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US2006869A
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US1953783A
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US2335568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |