Granted Patent
Utility
US 4,821,948 · App. 07/178,114
Method and apparatus for applying flux to a substrate
Inventors:
John R. Fisher, Leslie A. Guth, James A. Mahler
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Apr 6, 1988
Inventors
John R. Fisher
Leslie A. Guth
James A. Mahler
Assignee (at issue)
American Telephone and Telegraph, Co.
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.