Granted Patent
Utility
US 6,532,709 · App. 10/100,032
Locking system and flooring board
Inventor:
Darko Pervan
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Mar 19, 2002
Inventor
Darko Pervan
Assignee (at issue)
Valinge Aluminium AB
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.