US3466770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled earth excavating and leveling apparatus
Assignee: Individual
•
Filing: 1966-09-16
•
Granted: 1969-09-16
•
Expires: 1986-09-16
Abstract
No abstract record available.
Inventors
- 👤 Frank W Morrison
- 👤 Jerry E Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:16
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/32; E02F3/36; E02F3/38; E02F3/382; E02F3/384; E02F3/42; E02F3/425; E02F3/76; E02F3/7609; E02F3/7613; E02F3/96; E02F3/963; E02F3/964; E02F9/00; E02F9/20; E02F9/22; E02F9/2253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB627203A
Cited
US2660816A
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US2846094A
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US2858626A
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US2927706A
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US3071265A
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US3042233A
Cited
FR1258415A
Cited
US3092919A
Cited
US3099098A
Cited
US3172552A
Cited
US3238648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |