LADDER UP
Filed: October 28, 1982
Safety Posts and Supports for Use in Connection with Ladders, Hatchways, and Hatchway Doors
Owned by: Bilco Company, The
Serial Number: 73401038
THERMOLATCH
Filed: February 11, 1983
Metal Latching and Release Mechanisms for Fire Vents, Doors, Hatches and Covers
Owned by: Bilco Company, The
Serial Number: 73413230
BILCO
Filed: April 6, 1992
counterbalanced horizontal access doors made of metal for sidewalks, floors, pits, ceilings, and roofs; and counterbalanced…
Owned by: Bilco Company, The
Serial Number: 74262662
T-CAM
Filed: October 4, 1993
counterbalancing units for counterbalancing the weight of doors and hatches
Owned by: Bilco Company, The
Serial Number: 74443655
LUMIVENT
Filed: September 4, 2001
roof vents primarily of metal designed to open automatically in case of fire
Owned by: Bilco Company, The
Serial Number: 76308754
STAKWEL
NON-METAL WINDOW WELLS
Owned by: Bilco Company, The
Serial Number: 76667623
