Seeking Permission from Dignan Family

Discussion in 'Darkroom Developing and Printing' started by jch, Sep 25, 2006.

  1. jch

    jch Guest


    I have an old but very clean copy of "Simplified Color Processing
    Formulas" and "150 Black-and-White Photographic Formulas" published by
    Photochemistry authority and editor Patrick D. Dignan in about 1967.

    According to Jack's Photographic and Chemistry Site
    ( the Dignan family does not have any
    copies of his books or newsletters to sell.

    There is a lot of good information in these (8.5x11 inch format)
    booklets that can be used by readers of this newsgroup. Does anyone
    know how i can get in touch with the Dignan family to secure permission
    to post a copy of these booklets? If i can get permission, i can scan
    the booklets and make pdf images or html versions available on my web
    jch, Sep 25, 2006
    1. Advertisements

  2. jch


    I think they must be out of copy right and public domain. Dan
    , Sep 28, 2006
    1. Advertisements

  3. jch

    darkroommike Guest

    No such thing, see the new copyright law. Things do not go into the
    public domain until released into the public domain or 95 years after
    the date of last publication. The Dignan estate still has copyright to
    these materials until such time, etc.


    " 1964 through 1977 Published with notice 95 years after publication
    date " (1967 + 95 = 2062 means we have another 56 years to go)

    See also

    darkroommike, Sep 28, 2006
  4. jch

    robe barnhart

    Jun 14, 2015
    Likes Received:
    This is a very old post, I know. I was married to Pat Dignan's daughter for 17 years and printed his newsletter and chem research. We are all still good friends and I can put you in touch with the family if you still have that desire. My . Regards to you. Yes, Dignan was a genius!
    robe barnhart, Jun 14, 2015
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.