Granted Patent
Utility
US 5,980,997 · App. 08/657,222
Method for preparing a substrate for a magnetic disk
Inventors:
Caroline A. Ross, Martin Philip Rosenblum
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Jun 3, 1996
Inventors
Caroline A. Ross
Martin Philip Rosenblum
Assignee (at issue)
Komag, 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.