Granted Patent
Utility
US 4,530,125 · App. 06/605,953
Swimming pool cleaner component
Inventor:
Helmut Hofmann
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: May 1, 1984
Inventor
Helmut Hofmann
Assignee (at issue)
Selero Limited
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.