Patent US2598933A successfully refreshed from Google Patents.
US2598933A
Expired / Lapsed
US
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Knife assembly for rotary cutters
Assignee: Individual
•
Filing: 1948-10-29
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Granted: 1952-06-03
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Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 Edward J Nevin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:39
CPC Classifications
B; B27; B27G; B27G13/00; B27G13/02; B27G13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |