Patent US3391776A successfully refreshed from Google Patents.
US3391776A
Expired / Lapsed
US
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Combination elevating scraper and loader
Assignee: Doosan Bobcat North America Inc
•
Filing: 1966-11-14
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Granted: 1968-07-09
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 James E Hancock
- 👤 Robert L Reinhardt
- 👤 Howard E Stuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:27
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7695; E02F3/28; E02F3/34; E02F3/348; E02F3/3483; E02F7/00; E02F7/02; E02F7/026; E02F9/00; E02F9/02; E02F9/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1470221A
Cited
US2209804A
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US2559379A
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US2696287A
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US2763331A
Cited
DE1090161B
Cited
US3095080A
Cited
US3156313A
Cited
US3302739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |