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Patent US2636328A successfully refreshed from Google Patents.
US2636328A
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Rock picker
Assignee: MINN KOTA Manufacturing Co
•
Filing: 1949-04-18
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Granted: 1953-04-28
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Expires: 1969-04-18
Abstract
No abstract record available.
Inventors
- 👤 Anton M Jochim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:07
CPC Classifications
A; A01; A01B; A01B43/00; A01D; A01D87/00; A01D87/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US572213A
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US1540940A
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US1563340A
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US2218579A
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US2296085A
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US2388411A
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US2419154A
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US2519136A
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US2491079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |