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. 

Category Description Model Number Patent Number
Step Stool Folding One Step - Step Stool 11903, 11907 10058187
Step Stool World’s Greatest Work Platform 11003 6390238
Step Stool World’s Greatest Work Platform 11003 6427805
Step Stool World’s Greatest Work Platform 11003 6454050
Step Stool Utility Tray for Step Stool 11289, 11281 6536557
Step Stool Protech Series Step Stool 11289, 11282 6550579
Step Stool Retro Chair Step Stool 11120, 11123 6840583
Step Stool Foldable Step Ladder With Leg Aligner and Handle 20402, 20502, 20602, 20802, 2061A, 2081A, 2051A 7104362
Step Stool Step Stool with Elevated Tray 11788, 11780 7182176
Step Stool Signature Series Step Stool 20602, 2061A, 2081A, 210A, 2012A 7370727
Step Stool Signature Series Step Stool 2012A, 2010A 7849967
Step Stool Super Fold Step Stool 11870, 11671, 11674, 11679, 11680 6769515
Step Stool Single Step Molded Plastic Step Stool 11930 D553370
Step Stool Single Step Molded Plastic Step Stool 11950 D558473
Step Stool 2 Step Contour Step Stool 11380 D562991
Step Stool 2 Step Basics Step Stool 11696, 11692 D565745
Step Stool Kitchen Stepper Foldable Step Stool 11349 Patent Pending