[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Savannah-help-public] [sr #105278] Is Unisys GIF patent expired?

From: Michael J. Flickinger
Subject: [Savannah-help-public] [sr #105278] Is Unisys GIF patent expired?
Date: Wed, 5 Apr 2006 11:08:30 -0400
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Firefox/1.0.7 (Ubuntu package 1.0.7)

Update of sr #105278 (project administration):

                  Status:                    None => Done                   
             Assigned to:                    None => mjflick                
             Open/Closed:                    Open => Closed                 


Follow-up Comment #1:

I'd recommend a quick readover of your quote:

> The U.S. IBM patent expires 11 August 2006, (we are still searching the
databases of other countries).

>From the philosophy page:
> Even if Unisys really did give permission for free software to 
> generate GIFs, we would still have to deal with the IBM patent. 
> Both the IBM and the Unisys patents cover the same
> "invention"--the LZW compression algorithm. (This could reflect 
> an error on the part of the US Patent and Trademark Office, which
> is famous for incompetence and poor judgment.)


Reply to this item at:


  Message sent via/by Savannah

reply via email to

[Prev in Thread] Current Thread [Next in Thread]