Joy Mangano's Clean Boss cleaner/disinfectant product

Has anyone purchased this? I have 4 bottles and am now wondering how I determine the freshness/use-by/expiration date of the product. There is printing on the bottle ‘mfr 041021’ which looks like maybe the manufacture date, but no indication of the shelf life or when it will become ineffective. Anyone have any info or an educated guess? Live Chat had no idea and there’s no product manager there to ask. Consulted Joy’s website with the question but no response yet. I just hope I didn’t purchase 4 bottles of expired product. Thanks for any input!