Granted Patent
Utility
US 6,511,064 · App. 09/552,064
Method and apparatus for multiple document detection using ultrasonic phase shift amplitude
Inventors:
Daniel P. Phinney, David M. Pultorak, Albert H. Titus
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Apr 19, 2000
Inventors
Daniel P. Phinney
David M. Pultorak
Albert H. Titus
Assignee (at issue)
EASTMAN KODAK COMPANY
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.