Patent US3136078A successfully refreshed from Google Patents.
US3136078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth working roller unit
Assignee: Gabilan Manufacturing Inc
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Filing: 1960-10-28
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Granted: 1964-06-09
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Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jean C Renault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:50
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/78; E02F3/783; A; A01; A01B; A01B29/00; A01B29/04; A01B29/041; E01; E01C; E01C21/00; E01C23/00; E01C23/06; E01C23/12; E01C23/122; E01C23/127
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
AN EARTH WORKING IMPLEMENT COMPRISING, WITH AN UPSTANDING TRANSVERSELY EXTENDING CONCAVELY CURVED SCRAPER BLADE HAVING A CUTTING EDGE PORTION, A GROUND ENGAGING ROLLER UNIT IN FRONT OF THE BLADE IN SPACED BUT RELATIVELY CLOSE RELATION THERETO, THE UNIT INCLUDING CIRCUMFERENTIALLY SPACED PARALLEL SIDED TRANSVERSELY EXTENDING RELATIVELY WIDE AND FORWARDLY CANTED SPADES ABOUT THE PERIPHERY THEREOF, AND RIGID BREAKER BARS DEPENDING SYMMETRICALLY BETWEEN ADJACENT ROWS OF SPADES AND RADIALLY INWARD BEYOND THE SAME ADJACENT THE TOP OF THE ROLLER UNIT AND RELATIVELY CLOSE TO THE SPADES.
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |