Granted Patent
Utility
US 5,930,435 · App. 08/737,985
Optical filter device
Inventors:
Richard Ian Laming, Wei-Hung Loh, David Neil Payne, Michael Nickolaos Zervas
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: May 1, 1997
Inventors
Richard Ian Laming
Wei-Hung Loh
David Neil Payne
Michael Nickolaos Zervas
Assignee (at issue)
University of Southampton
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.