Granted Patent
Utility
US 5,520,768 · App. 08/327,305
Method of surface preparation of aluminum substrates
Inventors:
Russell A. Crook, Larry W. Poulter, Kenneth J. Schulte, James Wallace Sinclair
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Oct 21, 1994
Inventors
Russell A. Crook
Larry W. Poulter
Kenneth J. Schulte
James Wallace Sinclair
Assignee (at issue)
Thiokol 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.