Patent US3325927A successfully refreshed from Google Patents.
US3325927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front end ripper attachment for bulldozer
Assignee: Individual
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Filing: 1964-11-16
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Granted: 1967-06-20
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Henry A Mullin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:43
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8155
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
142 words
A RIPPER TOOTH ADAPTED TO BE MOUNTED ON THE FRONT FACE OF A BULLDOZER MOLDBOARD HAVING, (A) A DEMOUNTABLE DIGGING POINT, (B) A PAIR OF LATERALLY SPACED MOUNTING SHANKS FLOWING UPWARDLY AND REARWARDLY FROM SAID DIGGING POINT HAVINT TOP SURFACES HAVING A GRADUAL INCREASING INCLINE PLANE, (C) BOTTOM SURFACES ON SAID SHANKS ADJACENT SAID DIGGING POINT SUPPORTED BY CONTACTING THE BULLDOZER MOLDBOARD ADJACENT THE CUTTING EDGE THEREOF, (D) A SLAB ROCK AND PAVEMENT BREAKER ASSOCIATED WITH SAID LATERALLY SPACED MOUNTING SHANKS INCLUDING, (E) A PAIR OF LATERALLY SPACED CRUSHER WHEELS JOURNALED ON A TRANSVERSE HORIZONTAL AXIS ON THE MOLDBOARD FOR VERTICAL MOVEMENT THEREON AND STRADDLING SAID RIPPER TOOTH IN FRONT OF SAID LATERALLY SPACED MOUNTING SHANKS FOR SAID RIPPER TOOTH, (F) AND POWER MEANS UNDER BULLDOZER OPERATOR CONTROL CONNECTED TO RELATIVELY MOVE SAID CRUSHER WHEELS AND SAID RIPPER TOOTH TOP INCLINED SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |