Granted Patent
Utility
US 5,757,372 · App. 08/588,063
Multiple nonlinear undo buttons
Inventors:
Kai-Thomas Krause, Ben Weiss
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jan 16, 1996
Inventors
Kai-Thomas Krause
Ben Weiss
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.