>Hi Al,
>
>>
http://www.freepatentsonline.com/5799184.html? - Dave Fulton & Eric Christensen, assigned to MS.
>
>What confused me with this patent is that it's been applied for years after Rushmore has been shipped. Several other patents refer to magazine articles from 1991. This patent is from 1993.
Hmm, maybe Fox Software initially treated Rushmore as a trade secret, and only pursued patent protection later - or rather, MS pursued it after they bought Fox.
Regards. Al
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