Granted Patent
Utility
US 5,087,332 · App. 07/740,064
Process for making a thin film magnetic head with single step lift-off
Inventor:
Johnny C. Chen
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: Aug 5, 1991
Inventor
Johnny C. Chen
Assignee (at issue)
Read Rite Corporation
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.