Granted Patent
Utility
US 5,452,347 · App. 08/001,366
Dual-line telephone bridging device that gives remote telephones access to communications features
Inventors:
David C. Iglehart, Gordon D. Ford, Leland Lester
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Jan 7, 1993
Inventors
David C. Iglehart
Gordon D. Ford
Leland Lester
Assignee (at issue)
Rolm Company
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.