Granted Patent
Utility
US 4,530,457 · App. 06/338,952
Wave-soldering of printed circuit boards
Inventor:
William H. Down
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Jan 12, 1982
Inventor
William H. Down
Assignee (at issue)
Electrovert Ltd.
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.