Granted Patent
Utility
US 4,480,462 · App. 06/436,619
Hydrostatic test apparatus
Inventor:
Darwin A. Miller
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Oct 25, 1982
Inventor
Darwin A. Miller
Assignee (at issue)
Damco Testers, Inc.
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.