Granted Patent
Utility
US 5,707,690 · App. 08/384,188
Protective coating for wood
Inventors:
Andreas Valet, Roger Meuwly
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Feb 6, 1995
Inventors
Andreas Valet
Roger Meuwly
Assignee (at issue)
Ciba-Geigy
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.