Patent US3018573A successfully refreshed from Google Patents.
US3018573A
Expired / Lapsed
US
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Tilting bulldozer blade
Assignee: Doosan Bobcat North America Inc
•
Filing: 1957-06-12
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Granted: 1962-01-30
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Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Paul F Mcadams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:56
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7618
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2529124A
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US2630638A
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US2683318A
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US2678508A
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US2737735A
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US2658342A
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US2775831A
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US2837845A
Cited
US2817168A
Cited
US2839849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |