Granted Patent
Utility
US 3,937,364 · App. 05/564,701
Foam dispensing device
Inventor:
Hershel Earl Wright
Patented Case
View Patent ↗
Granted: Feb 10, 1976
Filed: Apr 3, 1975
Inventor
Hershel Earl Wright
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.