The Apple vs. Microsoft copyright case was a lawsuit Apple filed in 1988 alleging that Microsoft’s Windows 2.03 and 3.0 copied the graphical interface of the Macintosh; Microsoft won at trial and on appeal because a 1985 license already covered most of the disputed visual elements, and the rest were considered too functional or generic to receive strong copyright protection.1Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 35 F.3d 1435 – Section: I
What Apple Accused Microsoft of Copying
Apple’s complaint identified 189 specific features and similarities between the Macintosh interface and Microsoft’s Windows products. The disputed elements included the trash can icon for discarding files, overlapping rectangular windows, icons that could be dragged with a mouse, and the appearance of folders and menus.2Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 717 F. Supp. 1428 – Section: II
Rather than claim ownership of each icon in isolation, Apple argued that the total user experience of the Macintosh desktop was a creative work protected by copyright. Even if individual elements were simple, Apple maintained, their specific arrangement produced a distinctive expression that Microsoft had copied.3Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 35 F.3d 1435 – Section: III
The 1985 License That Shaped the Case
On November 22, 1985, Apple and Microsoft signed a license agreement to resolve earlier tensions over visual displays. Apple granted Microsoft the right to use certain visual displays generated by Windows 1.0 in current and future software products.4Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 717 F. Supp. 1428
When Windows 2.03 and 3.0 shipped, the two companies read that contract very differently. Apple argued the license was limited to version 1.0. Microsoft countered that the license covered the individual visual displays themselves, which could then appear in later versions of Windows. That disagreement over the scope of the 1985 agreement is what pushed the fight into court in 1988.1Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 35 F.3d 1435 – Section: I
How the Court Analyzed the Interface
The court used a process called analytic dissection, breaking the interface into its individual components to identify what copyright actually protected. Applying that method, the court found that more than 90 percent of the features Apple complained about were already authorized under the 1985 license.3Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 35 F.3d 1435 – Section: III
The remaining elements were tested for originality. The court applied doctrines that prevent any single company from monopolizing ideas that are standard in the industry. Overlapping windows, for example, were treated as a common way to display multiple images on a screen rather than a protectable creative choice. Because many of the contested elements were either licensed or functional, they were not something one company could own.3Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 35 F.3d 1435 – Section: III
Who Won the Lawsuit
With the range of creative expression for these features narrow, the court held that Apple would have to prove the Windows designs were virtually identical to the Macintosh interface to prevail. They were not exact copies, and the court ruled for Microsoft. Apple appealed, and in 1994 the Ninth Circuit Court of Appeals upheld the decision. The appellate ruling confirmed that functional elements of a user interface receive only thin copyright protection, so other companies can use similar concepts as long as they stop short of a total copy.3Justia Case Law. Apple Computer, Inc. v. Microsoft Corp., 35 F.3d 1435 – Section: III
The 1997 Settlement
In August 1997, the two companies announced a settlement that ended nearly a decade of litigation. The agreement moved the relationship away from courtroom disputes and toward cooperation on software development and patent licensing, closing out the copyright fight as a business matter rather than a legal one.