Granted Patent
Utility
US 5,207,498 · App. 07/750,304
Vacuum cleaner headlight
Inventors:
Randall K. Lawrence, Timothy W. Jackson, Ronald L. Sitzema, Jr.
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Aug 27, 1991
Inventors
Randall K. Lawrence
Timothy W. Jackson
Ronald L. Sitzema, Jr.
Assignee (at issue)
Aktiebolaget Electrolux
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.