Granted Patent
Utility
US 5,966,264 · App. 08/908,743
Two frequency servo PES pattern
Inventors:
Karl A. Belser, Wayne Leung Cheung
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Aug 7, 1997
Inventors
Karl A. Belser
Wayne Leung Cheung
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.