Patent US3466989A successfully refreshed from Google Patents.
US3466989A
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Earth materials handling apparatus
Assignee: Ulrich Manufacturing Co
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Filing: 1965-04-21
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Granted: 1969-09-16
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Expires: 1985-04-21
Abstract
No abstract record available.
Inventors
- 👤 John J Ulrich
- 👤 Raymond M Ulrich
- 👤 Solomon D Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:51
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7663; E02F3/7686
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2779508A
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US2888864A
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US2848930A
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US3015261A
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US3109351A
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US2962947A
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US3177785A
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US3061956A
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US3049822A
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US3216337A
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 |