Granted Patent
Utility
US 4,530,093 · App. 06/510,857
PCM Telecommunications system for voice and data
Inventors:
Tahir Akram, Daniel Bartozzi, Paul P. Dasiewicz
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Jul 5, 1983
Inventors
Tahir Akram
Daniel Bartozzi
Paul P. Dasiewicz
Assignee (at issue)
International Standard Electric 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.