Granted Patent
Utility
US 5,757,978 · App. 08/683,192
Method and system for detecting localized birefringence defects in a dynamic global birefringence field
Inventors:
Keith Alan Flick, Craig Mahaney
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jul 18, 1996
Inventors
Keith Alan Flick
Craig Mahaney
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.