Path: news.mathworks.com!newsfeed-00.mathworks.com!NNTP.WPI.EDU!elk.ncren.net!newsflash.concordia.ca!canopus.cc.umanitoba.ca!not-for-mail
From: roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson)
Newsgroups: comp.soft-sys.matlab
Subject: Re: Plotting 3-D Surface & Surface Fitting
Date: Wed, 5 Dec 2007 18:14:16 +0000 (UTC)
Organization: National Research Council Canada - Conseil national de rechereches Canada
Lines: 18
Message-ID: <fj6ppo$fol$1@canopus.cc.umanitoba.ca>
References: <fj46nh$cvl$1@fred.mathworks.com> <fj4hoc$o0f$1@fred.mathworks.com> <fj4ljd$n3g$1@fred.mathworks.com> <fj5gi0$37r$1@fred.mathworks.com>
NNTP-Posting-Host: origin.ibd.nrc.ca
X-Trace: canopus.cc.umanitoba.ca 1196878456 16149 192.70.172.160 (5 Dec 2007 18:14:16 GMT)
X-Complaints-To: abuse@cc.umanitoba.ca
NNTP-Posting-Date: Wed, 5 Dec 2007 18:14:16 +0000 (UTC)
Originator: roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson)
Xref: news.mathworks.com comp.soft-sys.matlab:441004



In article <fj5gi0$37r$1@fred.mathworks.com>,
Bruno Luong <brunoluong@yahoo.com> wrote:
>"John D'Errico" <woodchips@rochester.rr.com> wrote in
>message <fj4ljd$n3g$1@fred.mathworks.com>...
>
>> 
>> Not available in the public domain. It gets tricky,
>> since gridfit is a variation of a tool that I developed
>> almost 20 years ago. At the time, Kodak had me
>> gain several US patents on the methods used,

>I believe patents expire in about 15/20 years depending on
>the country.

Some countries (including the USA) sometimes allow patents to be renewed
one or more times (not necessarily for as long each time.)
-- 
  "All is vanity."                                   -- Ecclesiastes