Granted Patent
Utility
US 4,545,329 · App. 06/640,128
Water heater
Inventor:
Charles L. Adams
Patented Case
View Patent ↗
Granted: Oct 8, 1985
Filed: Aug 13, 1984
Inventor
Charles L. Adams
Assignee (at issue)
PVI Industries, LLC
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.