Granted Patent
Utility
US 6,564,522 · App. 09/989,586
Hidden dual loading spring-type floor board fastening mount structure
Inventor:
Lee Chiu-Ying
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Nov 20, 2001
Inventor
Lee Chiu-Ying
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.