Granted Patent
Utility
US 4,697,246 · App. 06/648,399
Method and apparatus for detecting the engagement of a proper number of articles
Inventors:
Edward H. Zemke, Gary L. VanderSyde, K. George Rabindran, Kenneth L. Guenther
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Sep 7, 1984
Inventors
Edward H. Zemke
Gary L. VanderSyde
K. George Rabindran
Kenneth L. Guenther
Assignee (at issue)
Bell and Howell, LLC
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.