Granted Patent
Utility
US 4,530,090 · App. 06/518,777
Telecommunications systems with user programmable features
Inventors:
Lawrence Priamo, Robert B. MacKenzie
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Jul 29, 1983
Inventors
Lawrence Priamo
Robert B. MacKenzie
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.