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US3442035A
Expired / Lapsed
US
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Double-blade ditcher
Assignee: MOISE J HYMEL
•
Filing: 1966-01-05
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Granted: 1969-05-06
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Expires: 1986-01-05
Abstract
No abstract record available.
Inventors
- 👤 Moise J Hymel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:37
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/027; E02F3/00; E02F3/04; E02F3/76; E02F3/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1653118A
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US1711488A
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US1704475A
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US1743969A
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US1775483A
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US2336124A
Cited
US2648919A
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US2684543A
Cited
US2916835A
Cited
US3206879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |