Granted Patent
Utility
US 4,885,649 · App. 07/253,390
Thin film head having a magneto-restrictive read element
Inventor:
Shyam C. Das
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Oct 4, 1988
Inventor
Shyam C. Das
Assignee (at issue)
Digital Equipment 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.