19 Patent: 3M - Minnesota Mining and Manufacturing Company (DIG) - Read it all the way to the AC. (patft.uspto.gov) posted 1 year ago by BrewSkiMAGA 1 year ago by BrewSkiMAGA +19 / -0 6 comments share 6 comments share save hide report block hide child comments Comments (6) sorted by: top new old worst ▲ 2 ▼ – BrewSkiMAGA [S] 2 points 1 year ago +2 / -0 NOTE: The last update date. 2020-04-03 - Application status is Expired - Fee Related permalink save report block reply ▲ 1 ▼ – BrewSkiMAGA [S] 1 point 1 year ago +1 / -0 "1. A process for preparing adrenochrome which comprises oxidizing adrenaline or a salt thereof with a persulfate in an aqueous medium at a pH in the range 4 to 8 in the presence of one or more water-soluble salts of bismuth. " permalink save report block reply ▲ 1 ▼ – BrewSkiMAGA [S] 1 point 1 year ago +1 / -0 http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&d=PALL&s1=4501923.PN. permalink save report block reply ▲ 1 ▼ – BrewSkiMAGA [S] 1 point 1 year ago +1 / -0 https://patents.google.com/patent/US4501923A/en permalink save report block reply ▲ 1 ▼ – Belleoffreedom 1 point 1 year ago +1 / -0 This post is pointless. permalink save report block reply ▲ 1 ▼ – BrewSkiMAGA [S] 1 point 1 year ago +1 / -0 your comment is pointless - go troll somewhere else... permalink parent save report block reply
NOTE: The last update date.
2020-04-03 - Application status is Expired - Fee Related
"1. A process for preparing adrenochrome which comprises oxidizing adrenaline or a salt thereof with a persulfate in an aqueous medium at a pH in the range 4 to 8 in the presence of one or more water-soluble salts of bismuth. "
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&d=PALL&s1=4501923.PN.
https://patents.google.com/patent/US4501923A/en
This post is pointless.
your comment is pointless - go troll somewhere else...