Granted Patent
Utility
US 5,815,255 · App. 08/801,903
Method and system for measuring deflection angle of a beam of light reflected from a disk to determine tilt of the disk
Inventors:
Mitchell G. Van Ochten, Matthew P. Frazer, Yongxing Wang
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Feb 14, 1997
Inventors
Mitchell G. Van Ochten
Matthew P. Frazer
Yongxing Wang
Assignee (at issue)
Medar, 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.