Granted Patent
Utility
US 4,521,897 · App. 06/518,509
Apparatus for synchronizing the operation of master and slave counters
Inventor:
Richard G. Merrell
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Jul 29, 1983
Inventor
Richard G. Merrell
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.