Patent on cards in hypertext...

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Article #74417

#74417

From: Per Hammarlund
Date: Fri, 03 May 1991 06:36

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Hi,

I read this:

   In article <3828@motcsd.csd.mot.com> lance@motcsd.csd.mot.com (lance.norskog) writes:

      Paul Heckel has a patent on the card user interface for hypertext
      systems.  He has defended it succesfully against Apple, and is
      going after IBM.

Could someone explain what this patent is all about, does anyone have
the exact patent text? What does it cover apart from the items (so
far) successfully tried in court?

Also, who is Paul Heckel?

Thanks,
per

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From: perham@cyklop.nada.kth.se (Per Hammarlund)
Newsgroups: gnu.misc.discuss
Subject: Patent on cards in hypertext...
Message-ID: <PERHAM.91May3083631@cyklop.nada.kth.se>
Date: 3 May 91 06:36:34 GMT
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