Granted Patent
Utility
US 6,382,787 · App. 09/731,561
Spectacles set with a detachable sunglasses for mounting on a primary spectacle frame by means of magnetic attraction and interlocking engagement
Inventor:
Yiling Xie
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Dec 6, 2000
Inventor
Yiling Xie
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.