Granted Patent
Utility
US 4,072,252 · App. 05/693,383
Hand operated sprayer with automatic container vent
Inventors:
Emile B. Steyns, Jerry H. Miller
Patented Case
View Patent ↗
Granted: Feb 7, 1978
Filed: Jun 7, 1976
Inventors
Emile B. Steyns
Jerry H. Miller
Assignee (at issue)
AFA 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.