Granted Patent
Utility
US 4,454,035 · App. 06/392,264
Pool skimmer
Inventor:
Gunter Stefan
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Jun 25, 1982
Inventor
Gunter Stefan
Assignee (at issue)
Kafko Manufacturing 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.