Granted Patent
Utility
US 4,853,631 · App. 07/117,035
Magnetoresistive sensor having inter-leaved magnetoresistive elements for detecting encoded magnetic information
Inventor:
Ralph H. Carmen
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Nov 4, 1987
Inventor
Ralph H. Carmen
Assignee (at issue)
Superior Electron, 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.