Granted Patent
Utility
US 5,833,921 · App. 08/938,574
Lead-free, low-temperature solder compositions
Inventors:
Mohan R. Paruchuri, Dongkai Shangguan
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Sep 26, 1997
Inventors
Mohan R. Paruchuri
Dongkai Shangguan
Assignee (at issue)
Ford Motor Company
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.