Granted Patent
Utility
US 6,442,793 · App. 09/675,268
Handle and exhaust duct coupling assemblies for floor care machines
Inventors:
Chris M. Paterson, Dennis T. Lamb, Melvin Teitzman
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Sep 29, 2000
Inventors
Chris M. Paterson
Dennis T. Lamb
Melvin Teitzman
Assignee (at issue)
Oreck Holdings, LLC
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.