Granted Patent
Utility
US 6,761,449 · App. 10/420,446
Spectacles set with detachable magnetic shelter frame
Inventor:
Yiling Xie
Patented Case
View Patent ↗
Granted: Jul 13, 2004
Filed: Apr 22, 2003
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.