US2574932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Special purpose ear corn rake
Assignee: JOHN E ERICKSON
•
Filing: 1950-02-20
•
Granted: 1951-11-13
•
Expires: 1970-02-20
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Nohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:27
CPC Classifications
A; A01; A01D; A01D7/00; A01D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US94118A
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US180131A
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DE357536C
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US654645A
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US838417A
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US1115881A
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US1232539A
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US1275382A
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US1705441A
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US1888991A
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US2196129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |