Granted Patent
Utility
US 5,557,729 · App. 07/874,750
Application design interface enhancement
Inventor:
Charles A. Frean
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Apr 27, 1992
Inventor
Charles A. Frean
Assignee (at issue)
Digital Equipment Corporation
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.