Granted Patent
Utility
US 4,210,534 · App. 06/038,225
Multiple stage jet nozzle and aeration system
Inventor:
Allen E. Molvar
Patented Case
View Patent ↗
Granted: Jul 1, 1980
Filed: May 11, 1979
Inventor
Allen E. Molvar
Assignee (at issue)
Clevepak 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.