Granted Patent
Utility
US 6,413,644 · App. 08/813,961
Thin film structures for and method of sealing to glass
Inventor:
Charles Ray Ashcraft
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Mar 3, 1997
Inventor
Charles Ray Ashcraft
Assignee (at issue)
R.J. Reynolds Tobacco Company
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.