Granted Patent
Utility
US 6,162,287 · App. 09/298,137
Filter for vacuum cleaner
Inventors:
Dean R. Rohn, John J. Alberts, III, Alan J. Krebs, Roy O. Erickson, Jr.
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Apr 23, 1999
Inventors
Dean R. Rohn
John J. Alberts, III
Alan J. Krebs
Roy O. Erickson, Jr.
Assignee (at issue)
REXAIR 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.