Patent US3533174A successfully refreshed from Google Patents.
US3533174A
Expired / Lapsed
US
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Earth-moving machine with load-distributing auger
Assignee: Individual
•
Filing: 1968-01-10
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Granted: 1970-10-13
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Expires: 1988-01-10
Abstract
No abstract record available.
Inventors
- 👤 Walter Carston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:56
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/655; E02F3/6409; E02F3/6418; E02F3/6454; E02F3/6463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1397994A
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US1477212A
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US2104191A
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US2387263A
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US2418554A
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US2563926A
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US2463523A
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US2984026A
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US3431659A
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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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |