Granted Patent
Utility
US 6,748,765 · App. 09/851,627
Overflow downdraw glass forming method and apparatus
Inventor:
Richard B. Pitbladdo
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: May 9, 2001
Inventor
Richard B. Pitbladdo
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.