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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
DOCK PRODUCTS CANADA INC	600 ORWELL STREET UNIT 6 MISSISSAUGA ONTARIO L5A 3R9

International Classification(s)

• B65G:TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR L....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Alexander, James C	London, CA	99	2080
# of filed Patents : 99 Total Citations : 2080

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Patent Citation Ranking

• 8 Citation Count
• B65G Class

• 4.08 % this patent is cited more than
• 25 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

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

Full Text

US Patent No: 6033174

Vehicle restraint sensing system

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Abstract

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A vehicle restraint having a fixed member such as a frame mounted to a dock face and a hook movable relative to the fixed member for engaging a portion of a vehicle and restraining movement of the vehicle away from the dock. A non-contact sensor is employed to determine engagement of the hook with a portion of the vehicle. The sensor is positioned to provide an effective magnetic field in the zone of contact so that engagement with an ICC bar on the vehicle can be ascertained.

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Description

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Claims

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