Granted Patent
Utility
US 4,028,490 · App. 05/632,044
MSK digital data synchronization detector
Inventor:
Marvin A. Epstein
Patented Case
View Patent ↗
Granted: Jun 7, 1977
Filed: Nov 14, 1975
Inventor
Marvin A. Epstein
Assignee (at issue)
International Telephone and Telegraph 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.