Granted Patent
Utility
US 4,298,037 · App. 06/123,563
Method of shipping and using semiconductor liquid source materials
Inventors:
John C. Schumacher, Andre Lagendijk
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Feb 22, 1980
Inventors
John C. Schumacher
Andre Lagendijk
Assignee (at issue)
J.C. Schumacher 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.