Max M. Johnston — 3 Patents at Polyvend

Max M. Johnston has been granted 3 US patents while listed as an inventor at Polyvend. The first was granted in 1981 and the most recent in December 1994. Max M. Johnston ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Max M. Johnston in Russellville, AR, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5372416	Vending machine having an incorporated anti vandal door	Donald A. Shapley	1994-12-13
4275393	Method and apparatus for sensing pressure	—	1981-06-23
4269325	Can vending apparatus	Samuel Durham	1981-05-26

Max M. Johnston — 3 Patents

Issued Patents All Time

Patent Widget