The art of B. Kliban really took off in the mid-7o's. I have no idea what the B. stands for. I don't know his full name (I definitely need to do more research, but wanted to post him while I was thinking of it). I think he's still creating today.
The cat with red sneakers was a popular image. You would see it on coffee mugs and tee-shirts. I think the top picture of the cat in sneakers is a 70's image, while the 3 pictures below are more recent.
Click on the picture for a larger image.