Granted Patent
Utility
US 6,073,412 · App. 09/375,098
Corner key for window component assembly
Inventor:
John T. Verch
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Aug 16, 1999
Inventor
John T. Verch
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.