Granted Patent
Utility
US 4,882,726 · App. 07/123,941
Full duplex modem system for differing data bit rates
Inventors:
Gordon R. Lang, Fred M. Longstaff
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Nov 23, 1987
Inventors
Gordon R. Lang
Fred M. Longstaff
Assignee (at issue)
Motorola Canada Limited
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.