Granted Patent
Utility
US 6,525,862 · App. 09/779,808
Methods and apparatus for optical imaging
Inventors:
Walter G. Fisher, Eric A. Wachter
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Feb 8, 2001
Inventors
Walter G. Fisher
Eric A. Wachter
Assignee (at issue)
Photogen, 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.