Granted Patent
Utility
US 4,497,421 · App. 06/389,692
Mechanical post mix beverage dispensing system
Inventor:
William F. Schilling
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Jun 18, 1982
Inventor
William F. Schilling
Assignee (at issue)
Alco Foodservice Equipment 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.