Patent US2589553A successfully refreshed from Google Patents.
US2589553A
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Safety attachment for cutter bars
Assignee: Individual
•
Filing: 1949-06-13
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Granted: 1952-03-18
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Expires: 1969-06-13
Abstract
No abstract record available.
Inventors
- 👤 Kesselring Ammon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:37
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/24; A01D34/246; Y; Y10; Y10S; Y10S56/00; Y10S56/15; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896; Y10T74/18904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2410918A
Cited
US1570415A
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FR801644A
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US2337646A
Cited
US2442095A
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US2473655A
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US2514764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |