Granted Patent
Utility
US 4,568,002 · App. 06/499,126
Dispensing method and apparatus
Inventors:
Bernard A. Weinstein, William L. H. Hemsarth
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: May 31, 1983
Inventors
Bernard A. Weinstein
William L. H. Hemsarth
Assignee (at issue)
American Home Products Corp. (Del)
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.