Granted Patent
Utility
US 6,409,868 · App. 09/666,077
Window frame and method of fabricating same
Inventor:
Ronald Fredrick Edger
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Sep 21, 2000
Inventor
Ronald Fredrick Edger
Assignee (at issue)
ROYAL HOLDINGS TECHNOLOGIES CORP
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.