Granted Patent
Utility
US 4,867,371 · App. 07/070,150
Fabrication of optical devices
Inventors:
Richard L. Davis, Robert C Goodfellow, Peter J. Morgan
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Jul 2, 1987
Inventors
Richard L. Davis
Robert C Goodfellow
Peter J. Morgan
Assignee (at issue)
Plessey Overseas Limited
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.