Jet Propulsion Laboratory Display Information System: Difference between revisions

Revision as of 00:02, 7 February 2010

Revision as of 22:19, 21 December 2010

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According to the http://www.foxprohistory.org/ site, JPLDIS was the reason why Ashton-Tate lost a lawsuit against FoxPro and SCO FoxPro over copyrights used by FoxPro that were claimed to belong to Ashton-Tate and the dBase product. In December 11, 1990, Judge Hatter issued an order invalidating Ashton-Tate's copyrights in its own dBASE products.

That ruling was based on a legal doctrine known as "unclean hands". Judge Hatter explained that Ashton-Tate knew that the dBase program development was based on JPLDIS, and that fact was kept hidden from the Copyright Office. <ref> [http://www.foxprohistory.org/ashton_sues_fox.htm The History of FoxPro - Ashton-Tate vs Foxname="foxpro" Software]</ref>

== See also ==

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== References ==

{{Reflist}}|refs=

<ref name="foxpro"> [http://www.foxprohistory.org/ashton_sues_fox.htm The History of FoxPro - Ashton-Tate vs Fox Software]</ref>

<ref name="data based advisor">{{cite journal|last=Hawkins|first=John L.|year=1991|month=March|title=JPLDIS: The first dBASE? (a court decision finds dBASE had its origins in the JPLDIS public-___domain mainframe program)|journal=Data Based Advisor|volume=9|issue=3|page=92|publisher=Advisor Publications, Inc.|issn=1090-6436|url=http://find.galegroup.com/gtx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T003&prodId=AONE&docId=A10480052&source=gale&srcprod=AONE&version=1.0|accessdate=21 December, 2010}}

}}

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