Granted Patent
Utility
US 6,547,162 · App. 09/673,775
Foam spraying device
Inventors:
Jeroen D. De Regt, Roy Edwin Van Swieten
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Dec 8, 2000
Inventors
Jeroen D. De Regt
Roy Edwin Van Swieten
Assignee (at issue)
Keltub B.V.
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.