Granted Patent
Utility
US 5,245,487 · App. 07/784,067
Transducer head for rigid disk drive
Inventor:
Earl A. Cunningham
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: Oct 30, 1991
Inventor
Earl A. Cunningham
Assignee (at issue)
International Business Machines 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.