Granted Patent
Utility
US 4,921,158 · App. 07/314,808
Brazing material
Inventors:
Kuen-Shyang Hwang, Mohammad Sedigh, Mark W. Roth
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Feb 24, 1989
Inventors
Kuen-Shyang Hwang
Mohammad Sedigh
Mark W. Roth
Assignee (at issue)
General Instrument Corporation
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.