Granted Patent
Utility
US 5,533,110 · App. 08/346,600
Human machine interface for telephone feature invocation
Inventors:
Deborah L. Pinard, Eliana Peres, Ronald A. Evans
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Nov 29, 1994
Inventors
Deborah L. Pinard
Eliana Peres
Ronald A. Evans
Assignee (at issue)
Mitel 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.