Granted Patent
Utility
US 6,749,893 · App. 10/059,117
Method of preventing cracking in optical quality silica layers
Inventors:
Luc Ouellet, Jonathan Lachance, Sylvie Archambault
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Jan 31, 2002
Inventors
Luc Ouellet
Jonathan Lachance
Sylvie Archambault
Assignee (at issue)
DALSA Semiconductor 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.