Safety system for restraining movement of elevator car when car doors are open

United States of America Patent

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Jul 11, 2006
Grant Date
Dec 2, 2004
app pub date
May 27, 2003
filing date
May 27, 2003

priority date (Note)
Expired

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Abstract

A safety system for an elevator car which will prevent movement of the elevator car should the car drift beyond a predetermined distance from the hoistway sill with the car door in an open position.

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Patent Owner(s)

Patent Owner	Address
INVENTIO AG	6052 HERGISWIL

International Classification(s)

B66B:ELEVATORS; ESCALATORS OR MOVING WALKWAYS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Martin, Matthew	Randolph, NJ	75	434

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Safety system for restraining movement of elevator car when car doors are open

Number of patents in Portfolio can not be more than 2000

United States of America Patent

10447028

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PATENT NO	7073632
APP PUB NO	20040238289A1
SERIAL NO	10447028
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
July 11, 2006	US,7073632,B2 US7073632B2	GRANTED PATENT AS SECOND PUBLICATION
December 02, 2004	US,20040238289,A1 US20040238289A1	FIRST PUBLISHED PATENT APPLICATION

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10447028

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