Granted Patent
Utility
US 4,247,779 · App. 06/025,127
Link-clutch film drive mechanism for panoramic dental X-ray machine
Inventors:
Anthony Ciavattoni, Jack Flynn, Josef Ujvary
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Mar 29, 1979
Inventors
Anthony Ciavattoni
Jack Flynn
Josef Ujvary
Assignee (at issue)
Pennwalt Corporation
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.