Granted Patent
Utility
US 6,678,056 · App. 09/911,567
Jamin-type interferometers and components therefor
Inventor:
Michael J. Downs
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jul 23, 2001
Inventor
Michael J. Downs
Assignees (at issue)
Michael John Downs
Angela Christine Downs
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.