Granted Patent
Utility
US 5,739,980 · App. 08/621,297
Seal for disk drives
Inventor:
Peter E. Brooks
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Mar 22, 1996
Inventor
Peter E. Brooks
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.