Granted Patent
Utility
US 5,169,568 · App. 07/632,054
Method for casting a housing around an endoscope frame
Inventor:
Raymond Ainger, III
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Dec 21, 1990
Inventor
Raymond Ainger, III
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.