Granted Patent
Utility
US 4,807,230 · App. 07/055,805
Frame synchronization
Inventors:
Rangarajan Srinivasagopalan, James D. Pruett
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: May 29, 1987
Inventors
Rangarajan Srinivasagopalan
James D. Pruett
Assignee (at issue)
Racal Data Communications, Inc.
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.