US3071382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material spreader for use on a dump truck
Assignee: Individual
•
Filing: 1959-06-26
•
Granted: 1963-01-01
•
Expires: 1979-06-26
Abstract
No abstract record available.
Inventors
- 👤 Biasi Charles P De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:55
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C19/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A MATERIAL SPREADER HAVING A ROTATABLE SPREADER PLATE, A CONTROL SLEEVE SLIDABLY ADJUSTABLY MOUNTED ON A TUBULAR HOUSING FOR MOVEMENT TOWARDS AND AWAY FROM THE SPREADER PLATE, SAID SLEEVE INCLUDING A PLURALITY OF SWINGABLE CLOSURE DOORS YIELDABLY OPENABLE AND FORMING A CLOSURE FOR AT LEAST A PORTION OF THE LOWER END OF THE CONTROL SLEEVE WHEREBY THE CLOSURE DOORS MAY BE OPENED BY FORCES EXERTED BY LARGE LUMPS, STONES OR THE LIKE BEING THROWN CENTRIFUGALLY THEREBY ELIMINATING SUCH ARTICLES FROM THE MATERIAL SPREADER SO THAT THEY WILL NOT DECREASE THE EFFECTIVE DISTRIBUTION OF MATERIALS.
Claim 2
Dependent Claim
95 words
IN A MATERIAL SPREADER HAVING A ROTATABLE SPREADER PLATE, A CONTROL SLEEVE SLIDABLY ADJUSTABLY MOUNTED ON A TUBULAR HOUSING FOR MOVEMENT TOWARDS AND AWAY FROM THE SPREADER PLATE, SAID SLEEVE INCLUDING A PLURALITY OF SWINGABLE CLOSURE DOORS YIELDABLY OPENABLE AND FORMING A CLOSURE FOR AT LEAST A PORTION OF THE LOWER END OF THE CONTROL SLEEVE WHEREBY THE CLOSURE DOORS MAY BE OPENED BY FORCES EXERTED BY LARGE LUMPS, STONES OR THE LIKE BEING THROWN CENTRIFUGALLY THEREBY ELIMINATING SUCH ARTICLES FROM THE MATERIAL SPREADER SO THAT THEY WILL NOT DECREASE THE EFFECTIVE DISTRIBUTION OF MATERIALS.
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |