Granted Patent
Utility
US 5,198,044 · App. 07/682,212
Copper alloy and process for its preparation
Inventors:
Jeroen Colijn, Gerrit J. H. Mol, Piet Krahmer, Allan D. Steele
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Apr 9, 1991
Inventors
Jeroen Colijn
Gerrit J. H. Mol
Piet Krahmer
Allan D. Steele
Assignee (at issue)
Shell Research Limited
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.