US2831585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: Gulf Oil Corp
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Filing: 1955-08-19
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Granted: 1958-04-22
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Expires: 1975-08-19
Abstract
No abstract record available.
Inventors
- 👤 Emzy H Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:25
CPC Classifications
B; B65; B65B; B65B35/00; B65B35/30; B65B35/50; B65G; B65G57/00; B65G57/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
APPARATUS FOR FACILITATING THE HANDLING AND PACKAGING OF SLAB MATERIAL, WHICH COMPRISES A STEP ELEVATOR FOR POSITIONING A NUMBER OF SLAB MATERIAL IN STEP-WISE ARRANGEMENT, A RAMP LONGITUDINALLY DISPOSED WITH RESPECT TO SAID STEP ELEVATOR, A SPRING-BIASED PLATE OVERLYING SAID RAMP, MEANS FOR ACCUMULATING SUCH SLAB MATERIAL ON TOP OF EACH OTHER TO FORM A STACK THEREOF AND MOVING SUCH STACK UP SAID RAMP INTO FIXED ENGAGEMENT WITH SAID SPRINGBIASED PLATE, AND MEANS FOR MOVING SAID STACK FROM SAID FIXED ENGAGEMENT INTO A CONTAINER.
Claim 2
Dependent Claim
84 words
APPARATUS FOR FACILITATING THE HANDLING AND PACKAGING OF SLAB MATERIAL, WHICH COMPRISES A STEP ELEVATOR FOR POSITIONING A NUMBER OF SLAB MATERIAL IN STEP-WISE ARRANGEMENT, A RAMP LONGITUDINALLY DISPOSED WITH RESPECT TO SAID STEP ELEVATOR, A SPRING-BIASED PLATE OVERLYING SAID RAMP, MEANS FOR ACCUMULATING SUCH SLAB MATERIAL ON TOP OF EACH OTHER TO FORM A STACK THEREOF AND MOVING SUCH STACK UP SAID RAMP INTO FIXED ENGAGEMENT WITH SAID SPRINGBIASED PLATE, AND MEANS FOR MOVING SAID STACK FROM SAID FIXED ENGAGEMENT INTO A CONTAINER.
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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |