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Patent US2604026A successfully refreshed from Google Patents.
US2604026A
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US
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Rotary hoe
Assignee: Pittsburgh Forgings Co
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Filing: 1947-10-28
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Granted: 1952-07-22
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Expires: 1967-10-28
Abstract
No abstract record available.
Inventors
- 👤 William E Latta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:21
CPC Classifications
A; A01; A01B; A01B35/00; A01B35/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE210892C
Cited
US56631A
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US957722A
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US662366A
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US948820A
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US1203091A
Cited
US1407417A
Cited
FR512817A
Cited
US1491865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |