Granted Patent
Utility
US 4,795,446 · App. 06/823,918
Medical tube device
Inventor:
David C. Fecht
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Jan 30, 1986
Inventor
David C. Fecht
Assignee (at issue)
Sherwood Medical 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.