Archived posting to the Leica Users Group, 2005/07/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Patent number 5853964? http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=5853964.WKU.&OS=PN/5853964&RS=PN/5853964 http://tinyurl.com/exggk My understanding of patents is that you can use the invention for personal use, just don't sell/give it away. Only useful, IMO, if Xtol goes out of production. John Black wrote: > > > > If you want DEVELOPER, this is what you should be using, it's my own > > recipie: > > > > Water heated to twenty five degrees D 750 mL > > Ascorbic acid 11 grams > > Sodium metabisulfite 3,5 grams > > Sodium metaborate 4.75 grams > > Sodium sulfite anhyd. 60 grams > > Citric acid 2 grams > > Phenidone 0.15 gm > > Add enough water to make one lieter > > > > George > > That's NOT your recipe Kyle, that's Xtol from the patent filing. > > Nice try..