Granted Patent
Utility
US 5,435,968 · App. 08/185,114
A lead-free solder composition
Inventor:
Robert E. Panthofer
Patented Case
View Patent ↗
Granted: Jul 25, 1995
Filed: Jan 21, 1994
Inventor
Robert E. Panthofer
Assignee (at issue)
Touchstone, 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.