US2710467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power lift blade terracer-ditcher
Assignee: Individual
•
Filing: 1950-06-15
•
Granted: 1955-06-14
•
Expires: 1970-06-15
Abstract
No abstract record available.
Inventors
- 👤 Sr Charles W Cundiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:36
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7622; E02F3/7627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB536741A
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US2309750A
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US2395893A
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US2476195A
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US2434818A
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US2496760A
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US2560711A
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US2579651A
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US2530565A
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US2629946A
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US2564355A
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US2579553A
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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) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |