Granted Patent
Utility
US 6,231,429 · App. 09/203,378
Process for edging of glass blanks through simultaneous machining of plural edges
Inventor:
Peter Lisec
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Dec 2, 1998
Inventor
Peter Lisec
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.