[alt-photo] Re: caseine patent

[Peter Friedrichsen]

Christina,

I don't know if this is the case and in fact that patent was filed in 
several more countries including the USA

Food for thought is the fact that the GB and US patents both have 
translation errors because they refer to a dye sensitizer which they 
call "metallic violet" but in the French patent it is referred to as 
"methyl violet" which is the proper name for a light sensitizing dye 
which is still manufactured. Odd that it was never corrected.

Peter Friedrichsen

At 12:28 AM 09/06/2011, you wrote:
>Peter,
>I have that patent as well, dated from GB 1907 by Gateau..., so I 
>wonder if the fact that it was filed in two countries makes a 
>difference? 20,740.
>Chris
>
>Christina Z. Anderson
>christinaZanderson.com
>
>On Sep 5, 2011, at 9:45 PM, Peter Friedrichsen wrote:
>
> > Pascal,
> >
> > I have a French patent document No 380.1088 dated July 24, 1907 
> and it was downloaded from espacenet, so I don't think it is 
> limited to 30 years. The patent is for a FAC/casein mix invented by 
> Jacques Theodore Gateau.
> >
> >
> > Peter Friedrichsen
> >
> >
> > At 10:40 AM 09/01/2011, you wrote:
> >> Christina
> >>
> >> the french patent website espacenet
> >> has only 30 years archives.
> >>
> >> olders patents are not in the base.
> >>
> >> Pascal
> >>
> >> 2011/9/1 Christina Anderson <zphoto at montana.net>
> >>
> >> > I am trying to find a French patent 151,014 on caseine pigment 
> printing (I
> >> > think--it may be on caseine film making which is not of 
> interest). I have
> >> > done a search through espace.net and they have, too, and can't seem to
> >> > locate it. There is no date given, and no applicant name. Is 
> there anyone
> >> > from France on the list who knows how I can find this patent?
> >> >
> >> > It is not crucial, just a point of interest. I have been able 
> to locate all
> >> > other applicable patents except this one :(
> >> >
> >> > One has to watch footnotes in books for correct numbers. It seems people
> >> > are not always careful, and an incorrect number will turn up a haymaking
> >> > machine instead of the correct number one digit off that will 
> turn up the
> >> > caseine patent. Gees.
> >> >
> >> > But in any case, casein/caseine still in my research has no evidence of
> >> > "taking off" in the photography realm as it did in plastics, 
> glues, paints,
> >> > wallpaper glaze, foodstuff, thickeners, formula, protein 
> powders....yikes.
> >> >
> >> > Chris
> >> >
> >> > Christina Z. Anderson
> >> > christinaZanderson.com
> >> >
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