Granted Patent
Utility
US 6,511,549 · App. 09/931,382
Vacuum cleaning wheel and vacuum applicator
Inventors:
Ahmet Ercelebi, Steven F. Spiers, Jeremy J. Straight
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Aug 17, 2001
Inventors
Ahmet Ercelebi
Steven F. Spiers
Jeremy J. Straight
Assignee (at issue)
Philp Morris Incorporated
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.