Granted Patent
Utility
US 4,535,448 · App. 06/448,771
Dual bus communication system
Inventors:
Leslie A. Baxter, Sanford Brown
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Dec 10, 1982
Inventors
Leslie A. Baxter
Sanford Brown
Assignee (at issue)
AT&T Bell Laboratories
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.