Granted Patent
Utility
US 5,363,534 · App. 08/067,199
Vacuum cleaner and suction tube for use with a vacuum cleaner
Inventors:
Jan H. Dekker, Ate K. Damstra
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: May 25, 1993
Inventors
Jan H. Dekker
Ate K. Damstra
Assignee (at issue)
U.S. Philips Corporation
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.