Granted Patent
Utility
US 4,897,749 · App. 07/168,820
Combination probe and ring head for vertical recording
Inventors:
Craig Perlov, Peter K. George, Mark Jursich
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Mar 16, 1988
Inventors
Craig Perlov
Peter K. George
Mark Jursich
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.