It's so nice to see someone trying to use logic and common sense.My point is fairly obvious. There are differences in "design" and circuit boards etc. but even today, ALL vaping devices follow the same basic principal & "road map", as Mr. Gilbert called it. Doesn't this qualify even the most modern - high tech devices "substantially similar" to products available as far back as 1963 (!) ??? (actual patent publication date Aug. 17 1965 - Filing date April 17 1963)
If only you were the FDA.
As it stands, this is the reality of Substantial Equivalence...
A Review of FDA Substantial Equivalence rulings