[minnesota_bound]

This was another scam. DuPont owned the expiring patent for R-12 and so the ozone scam came along as they had that patent.

[dfwgator]

This was another scam. DuPont owned the expiring patent for R-12 and so the ozone scam came along as they had that patent.

Yep, everything with the environment happens, because somebody makes a lot of money on it.

[minnesota_bound]

Dupont has the patent for newer R-134a that does not do as good a job as R-12

Just like electric cars are being forced on us. Not by far as good as gas cars.