Granted Patent
Utility
US 4,536,740 · App. 06/583,476
Doublet detector for data recording or transmission
Inventor:
Jorgen P. Vinding
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Feb 24, 1984
Inventor
Jorgen P. Vinding
Assignee (at issue)
Magnetic Peripherals, 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.