Granted Patent
Utility
US 6,489,034 · App. 09/500,192
Method of forming chromium coated copper for printed circuit boards
Inventors:
Jiangtao Wang, John P. Callahan, Dan Lillie
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Feb 8, 2000
Inventors
Jiangtao Wang
John P. Callahan
Dan Lillie
Assignee (at issue)
Gould Electronics 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.