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US2491079A
Expired / Lapsed
US
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Rock picking machine
Assignee: Individual
•
Filing: 1948-06-22
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Granted: 1949-12-13
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Expires: 1968-06-22
Abstract
No abstract record available.
Inventors
- 👤 Bestland Jergen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:51
CPC Classifications
A; A01; A01B; A01B43/00; Y; Y10; Y10S; Y10S56/00; Y10S56/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US515679A
Cited
US1540940A
Cited
US1625560A
Cited
US2234599A
Cited
US2296085A
Cited
US2453384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |