About to be OT: r-134a a/c conversion q's

["Michael Abatzis" <abatzis2@hotmail.com>]

Of course, by that reasoning, there should now be about a million generic
"Freon" products floating around for a fraction of what the real stuff
costs.  when a patent expires, anyone can use the design. any successful
product will have a line of companies waiting for that patent to expire so
that they can cash in too.
-michael

>   Finally, someone that agrees that the real reason for the demise of R12
is
> strictly economic. When you have a patent, you have a licensing monopoly
for
> 20 years. To maintain that monopoly, you have to make a quantifiable
> improvement in the product to get another patent issued.

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