US3220740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material spreading and handling trailer
Assignee: Hoover Universal Inc
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Filing: 1963-12-04
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Granted: 1965-11-30
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Francis A Kavan
- 👤 Mcneal George Russell
- 👤 Eldon P Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:17
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C19/203; A; A01; A01C; A01C15/00; A01C17/00; A01C7/00; A01C7/08; A01C7/085; B; B60; B60P; B60P1/00; B60P1/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
IN A MATERIAL HANDLING TRAILER HAVING A WHEELED FRAME, A MATERIAL RETAINING BOX ON SAID FRAME, AND A CONVEYOR MOUNTED WITHIN SAID BOX FOR DELIVERING MATERIAL TO A DEPOSIT POINT EXTERIORLY OF SAID BOX AT THE REAR THEREOF, THE COMBINATION THEREWITH OF: A PAIR OF DISHED SPINNER DISKS MOUNTED FOR ROTATION IN A HORIZONTAL PLANE ABOUT SEPARATE AXES IN SPACED RELATIONSHIP BELOW SAID DEPOSIT POINT, MEANS FOR ROTATING SAID DISKS, AND A BAFFLE ASSEMBLY INTERMEDIATE SAID DEPOSIT POINT AND SAID DISKS AND INCLUDING A PLURALITY OF VERTICALLY SPACED DEFELCTORS, ONE OF WHICH DEFLECTORS INTERCEPTS MATERIAL FROM SAID DEPOSIT POINT AND DIRECTS SAID MA-
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |