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US2593780A
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US
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Dump rake
Assignee: Automatic Equipment Manufacturing Co
•
Filing: 1948-07-09
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Granted: 1952-04-22
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Expires: 1968-07-09
Abstract
No abstract record available.
Inventors
- 👤 Harold J Mcintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:50
CPC Classifications
A; A01; A01D; A01D76/00; A01D76/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US260056A
Cited
US783636A
Cited
US931012A
Cited
US965110A
Cited
US1525580A
Cited
US1969684A
Cited
US2228813A
Cited
US2226460A
Cited
US2366234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |