Plastic Coke and Sprite cans from 1985

[dshvo]

Hi.  I am trying to find information about the Coke and Sprite plastic cans that were test marketed in 1985. I am a patent defense attorney, and my client was sued by someone that got a patent on plastic cans with an invention date in 2010. Given that Coke used such cans in 1985, the patent should be invalid. But I am trying to find someone who has personal knowledge that the cans were actually publicly test-marketed in 1985. I have seen examples of such cans on this site, so I am hoping someone can confirm, or knows someone who can confirm, that the cans were test marketed in 1985.



Thanks!