Granted Patent
Utility
US 5,450,488 · App. 08/204,793
Multiple service voice messaging system
Inventors:
John B. Pugaczewski, Mark S. Maize
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: Mar 2, 1994
Inventors
John B. Pugaczewski
Mark S. Maize
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.