Patent US3235268A successfully refreshed from Google Patents.
US3235268A
Expired / Lapsed
US
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Safety spreader
Assignee: Individual
•
Filing: 1963-12-04
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Granted: 1966-02-15
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Ronald S Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:26
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C2019/2055; E01C2019/207; E01C2019/2095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SPREADER FOR ATTACHMENT TO THE BED OF A DUMP TRUCK COMPRISING AN END GATE HAVING A V-SHAPED PORTION AND A PAIR OF END PORTIONS EACH SECURED TO A RESPECTIVE END OF THE V-SHAPED PORTION, A PAIR OF ELONGATED FEED CYLINDERS EACH ROTATABLY MOUNTED FROM A RESPECTIVE END PORTION, A PAIR OF HOPPERS SECURED TO SAID END GATE IN SPACED RELATIONSHIP TO SAID CYLINDERS, EACH OF SAID HOPPERS INCLUDING A PLURALITY OF DEFLECTOR PLATES, THE END PORTIONS OF SAID END GATE EACH INCLUDING A SLOT FOR PROVIDING COMMUNICATION BETWEEN THE TRUCK BED AND A RESPECTIVE ONE OF SAID CYLINDERS, AND MEANS FOR ROTATING SAID CYLINDERS, EACH OF SAID CYLINDERS HAVING A PIVOTALLY SUPPORTED HOOD FOR PERMITTING PASSAGE OF LARGE OBJECTS.
Claim 2
Dependent Claim
120 words
A SPREADER FOR ATTACHMENT TO THE BED OF A DUMP TRUCK COMPRISING AN END GATE HAVING A V-SHAPED PORTION AND A PAIR OF END PORTIONS EACH SECURED TO A RESPECTIVE END OF THE V-SHAPED PORTION, A PAIR OF ELONGATED FEED CYLINDERS EACH ROTATABLY MOUNTED FROM A RESPECTIVE END PORTION, A PAIR OF HOPPERS SECURED TO SAID END GATE IN SPACED RELATIONSHIP TO SAID CYLINDERS, EACH OF SAID HOPPERS INCLUDING A PLURALITY OF DEFLECTOR PLATES, THE END PORTIONS OF SAID END GATE EACH INCLUDING A SLOT FOR PROVIDING COMMUNICATION BETWEEN THE TRUCK BED AND A RESPECTIVE ONE OF SAID CYLINDERS, AND MEANS FOR ROTATING SAID CYLINDERS, EACH OF SAID CYLINDERS HAVING A PIVOTALLY SUPPORTED HOOD FOR PERMITTING PASSAGE OF LARGE OBJECTS.
References Cited (Backward Citations)
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US693695A
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US1182747A
Cited
US1644575A
Cited
US1606676A
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US2093953A
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US2935139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |