Granted Patent
Utility
US 4,066,282 · App. 05/691,384
Positive tubing release coupling
Inventor:
Roy R. Vann
Patented Case
View Patent ↗
Granted: Jan 3, 1978
Filed: Jun 1, 1976
Inventor
Roy R. Vann
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.