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user interface copyright : FOLDOC | user interface copyright There have been several attempts, mostly by big US software companies, to enforce patents and copyright on user interfaces. Such legal action aims to restrict the use of certain command languages or graphical user interfaces to products from one software supplier. This is undesirable because it either forces users to buy software from the company whose interface they have learned or to learn more than one interface. An analogy is often drawn with the user interface of a car - the arrangement of pedals and steering wheel etc. If each car manufacturer was forced to use a different interface this would be very bad for car users. Following a non-jury trial, which began in early January 1987, a federal judge ruled on 1990-06-28 that keyboard commands and on-screen images produced by Lotus Development Corporation's popular 1-2-3 spreadsheet are protected by copyright. {Paperback Software International} and subcontractor Stephenson Software Ltd. who
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