Wikipedia:Articles for deletion/Gas porosity
I assume that a patent specification is public domain, so that no question of copy-vio arises.  The patent is a published source.  This is thus not  as WP uses the term.  The article has several other tags on it, and we should hope that it will in due course be improved
— User:Peterkingiron, 23:16, 5 December 2007 (UTC)
Stance: keep
Cited policy: WP:OR (Wikipedia:No original research)