Patent US2644501A successfully refreshed from Google Patents.
US2644501A
Expired / Lapsed
US
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Cutting element for composting machines or hay comminuting machines
Assignee: Individual
•
Filing: 1951-05-15
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Granted: 1953-07-07
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Expires: 1971-05-15
Abstract
No abstract record available.
Inventors
- 👤 Price W Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:33
CPC Classifications
A; A01; A01F; A01F29/00; A01F29/09; A01F29/095
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |