US3156231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete plane
Assignee: Equipment Dev Co Inc
•
Filing: 1962-02-06
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Granted: 1964-11-10
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Expires: 1982-02-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward M Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:04
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/08; E01C23/085; E01C23/088; B; B28; B28D; B28D1/00; B28D1/18; B28D1/181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN COMBINATION WITH A HORIZONTAL SHAFT ROTATABLY SUPPORTED IN A MOBILE UNIT AND HAVING OPERABLE CONNECTION WITH POWER MEANS ON SAID UNIT, A CUTTER ASSEMBLY COMPRISING, PLATES FIXED AXIALLY ON SAID SHAFT IN LONGITUDINALLY SPACED RELATIONSHIP THEREALONG, WEDGE SOCKETS ON THE OPPOSED FACES OF SAID PLATES ARRANGED IN SPACED RELATIONSHIP ABOUT THE PERIPHERIES THEREOF, SAID SOCKETS BEING FORMED BY BRACKETS HAVING FRICTIONALLY OBSTRUCTED CHANNELS THEREIN OPENING GENERALLY RADIALLY INWARD OF THEIR SUPPORTING PLATES, BAR MEANS EACH HAVING ITS REMOTE ENDS FRICTIONALLY COUPLED IN OPPOSED WEDGE SOCKETS ON SAID SPACED PLATES, AND A PLURALITY OF CUTTER WHEELS ARRANGED IN PACKED SIDE BY SIDE RELATIONSHIP LONGITU-
Claim 2
Dependent Claim
104 words
IN COMBINATION WITH A HORIZONTAL SHAFT ROTATABLY SUPPORTED IN A MOBILE UNIT AND HAVING OPERABLE CONNECTION WITH POWER MEANS ON SAID UNIT, A CUTTER ASSEMBLY COMPRISING, PLATES FIXED AXIALLY ON SAID SHAFT IN LONGITUDINALLY SPACED RELATIONSHIP THEREALONG, WEDGE SOCKETS ON THE OPPOSED FACES OF SAID PLATES ARRANGED IN SPACED RELATIONSHIP ABOUT THE PERIPHERIES THEREOF, SAID SOCKETS BEING FORMED BY BRACKETS HAVING FRICTIONALLY OBSTRUCTED CHANNELS THEREIN OPENING GENERALLY RADIALLY INWARD OF THEIR SUPPORTING PLATES, BAR MEANS EACH HAVING ITS REMOTE ENDS FRICTIONALLY COUPLED IN OPPOSED WEDGE SOCKETS ON SAID SPACED PLATES, AND A PLURALITY OF CUTTER WHEELS ARRANGED IN PACKED SIDE BY SIDE RELATIONSHIP LONGITU-
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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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |