Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-08-22
2006-08-22
Mullen, Thomas (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S547000, C340S457000, C359S838000, C359S865000
Reexamination Certificate
active
07095322
ABSTRACT:
In accordance with the present invention, the rear roll-up, truck-door indicator is a magnetically operated indicator which is visible to the truck driver by simply looking into the driver's rear view mirror. The invention relates to a rear roll-up, truck-door open-or-closed indicator. The indicator will be located on the outside of the left side of the truck box body. There will be a clear tube placed through the truck box and will extend outside of the body. This tube will be placed at a slight upward angle from the outside of the truck to the inside of the truck box. A colorful indicator piston will be placed inside of this tube. The indicator will be colorful when the door is open; conversely, the indicator will not be colorful when the door is closed.
REFERENCES:
patent: 4427975 (1984-01-01), Kinzie
patent: 4835905 (1989-06-01), Lasier et al.
patent: 5602526 (1997-02-01), Read
patent: 6374766 (2002-04-01), Clark
Schumacher Marvin Henry
Smith George L
Mullen Thomas
Previl Daniel
Schumacher Marvin H
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