Granted Patent
Utility
US 4,621,289 · App. 06/591,741
Digital sync separator and differentiator
Inventors:
Stan Bart, Gopal K. Srivastava
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Mar 21, 1984
Inventors
Stan Bart
Gopal K. Srivastava
Assignee (at issue)
Zenith Electronics LLC
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.