Granted Patent
Utility
US 6,026,539 · App. 09/034,375
Upright vacuum cleaner with full bag and clogged filter indicators thereon
Inventors:
Brandon Mouw, John J. Jailor
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Mar 4, 1998
Inventors
Brandon Mouw
John J. Jailor
Assignee (at issue)
BISSELL Homecare, Inc.
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.