Ladder stabilizing apparatus
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United States of America Patent
Stats
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May 28, 1985
Grant Date -
N/A
app pub date -
Nov 15, 1983
filing date -
Nov 15, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An adjustable stablizing device which is attached to an extension ladder having hollow rungs without requiring modification of the ladder structure or affecting normal operation of the ladder is described. The device has two stabilizing elements made of aluminum which are located at different side of the ladder. Each stabilizing element has an upper and a lower bracket which are connected together by two rigid pivotably-linked longitudinal members. The stabilizing elements are connected to each other by rods which extend through the hollow rungs of the ladder and which connect the upper and the lower brackets. The lower bracket and the lower longitudinal member are pivotably connected, and the upper bracket has a number of apertures spaced lengthwise of the ladder. By choosing the aperture to which the upper longitudinal member is connected, the attitude of each of the lower members is varied via the pivotable connection so as to lie on the surface adjacent the ladder side. When not in use, the stabilizing elements are retained flush against the sides of the ladder for storage.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
R P R DESIGNS INC 1315 FINCH AVENUE WEST SUITE 120 CITY OF NORTH YORK M3J 2G6 MUNICIPALITY OF METROPOLITAN TORONTO ONTARIO CANADA A CORP OF ONTARIO CANADA | Not Provided |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ralston, Robert | 294 Silverstone Dr., Townhouse 71, Rexdale, Ontario, CA | 3 | 79 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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