Granted Patent
Utility
US 4,693,501 · App. 06/888,593
Refrigeration tubing joint
Inventors:
Terance B. Logsdon, Jr., Donald L. Fisher, JR.
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Jul 23, 1986
Inventors
Terance B. Logsdon, Jr.
Donald L. Fisher, JR.
Assignee (at issue)
American Standard 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.