Granted Patent
Utility
US 6,298,178 · App. 09/076,743
Stray light absorption
Inventors:
Ian Day, James Stuart McKenzie
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: May 13, 1998
Inventors
Ian Day
James Stuart McKenzie
Assignee (at issue)
BOOKHAM TECHNOLOGY, PLC
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.