US2582872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clod crushing roller
Assignee: Individual
•
Filing: 1947-11-06
•
Granted: 1952-01-15
•
Expires: 1967-11-06
Abstract
No abstract record available.
Inventors
- 👤 Charles H Krengel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
A; A01; A01D; A01D33/00; Y; Y10; Y10S; Y10S241/00; Y10S241/30; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10522; Y10T152/10576; Y10T152/10594
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189610328A
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US710142A
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US796639A
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US922246A
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US1202737A
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US1767353A
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US1814029A
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US1854261A
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US1858783A
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US1958905A
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US2005758A
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US2062711A
Cited
US2265380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |