Granted Patent
Utility
US 5,690,713 · App. 08/786,290
Filter and accessory mount for upright vacuum cleaner exhaust port
Inventors:
Leonard E. Bowerman, Jeffrey P. Chandler, Peter Hoekstra, Michael Kowalski, Carla B. Rogers
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Jan 22, 1997
Inventors
Leonard E. Bowerman
Jeffrey P. Chandler
Peter Hoekstra
Michael Kowalski
Carla B. Rogers
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.