Oh lol, this is actually worse than I thought. I thought you made the bag out of something that is *theoretically* degradable (e.g. in soil with water) but just doesn't degrade in practice. It sounds to me like you are calling this 99% biodegradable based solely on the cardboard, because the plastic is a negligible share of the weight.

Even then, I'm not sure how you get to 99%--the frame is metal, right? I would assume it is more than 1% of the weight of the product but maybe I'm wrong. How much does each component weigh, and how biodegradable is it?

if the bag itself is just some non-degradable plastic like PE, then yes I would say this is a very misleading, if technically true, claim. You could make an equally biodegradable product by just selling a regular plastic bag with the dog poop already in it! "Pre-filled!"

You know very well that this is not what people are looking for when they are looking for an environmentally friendly bag. That's as true in 1985 as it is today. Can you explain why you think this isn't deceptive?