Product Patents

Patent Marking and Notice

This Internet posting is intended to serve as notice under 35 U S C § 287 (a).

This Internet posting is intended to serve as notice under 35 USC (United States Code) § 287(a). Patented article/product may be covered by the following patents, as well as other corresponding foreign patents. United States associated patent numbers are below. Additional Cosco Products patents and patent applications, and products, may exist. Patented article/product may be sold as a unit, in components, or as a part of a combination system or product. For any optional/accessory/additional features listed for a product/article, in addition to the patents listed as associated to that optional/accessory/additional feature, also see the base product listings for additional associated patent numbers.

CategoryDescriptionModel NumberPatent Number
Step StoolFolding One Step - Step Stool11903, 1190710058187
Step StoolWorld’s Greatest Work Platform110036390238
Step StoolWorld’s Greatest Work Platform110036427805
Step StoolWorld’s Greatest Work Platform110036454050
Step StoolUtility Tray for Step Stool11289, 112816536557
Step StoolProtech Series Step Stool11289, 112826550579
Step StoolRetro Chair Step Stool11120, 111236840583
Step StoolFoldable Step Ladder With Leg Aligner and Handle20402, 20502, 20602, 20802, 2061A, 2081A, 2051A7104362
Step StoolStep Stool with Elevated Tray11788, 117807182176
Step StoolSignature Series Step Stool20602, 2061A, 2081A, 210A, 2012A7370727
Step StoolSignature Series Step Stool2012A, 2010A7849967
Step StoolSuper Fold Step Stool11870, 11671, 11674, 11679, 116806769515
Step StoolSingle Step Molded Plastic Step Stool11930D553370
Step StoolSingle Step Molded Plastic Step Stool11950D558473
Step Stool2 Step Contour Step Stool11380D562991
Step Stool2 Step Basics Step Stool11696, 11692D565745