Granted Patent
Utility
US 6,071,652 · App. 09/044,864
Fabricating optical elements using a photoresist formed from contact printing of a gray level mask
Inventors:
Michael R. Feldman, Thomas J. Suleski, William Delaney
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Mar 20, 1998
Inventors
Michael R. Feldman
Thomas J. Suleski
William Delaney
Assignee (at issue)
DigitalOptics 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.