air extractor for asw19 and asw20

4) The extractor shown may well infringe on the patent applied for
by JS or their resources.

FWIW- Hard core performance guy.
UH

I am buying one for my old ASW-19 which my brother now owns.
In emailing Alan, I mentioned the RAS patent infringement
musings.

Here is his response to that issue:

No patent infringement. My product was developed long before
Jonkers tried to patent their version and also uses different airfoil
sections, materials, technologies.

FWIW,

RO