Granted Patent
Utility
US 4,543,961 · App. 06/551,121
Data transmission system
Inventor:
David C. Brown
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Nov 14, 1983
Inventor
David C. Brown
Assignee (at issue)
CORDIS 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.