Granted Patent
Utility
US 4,617,264 · App. 06/549,522
Pretreatment method and composition
Inventors:
Gordon Whiteley, Cynthia G. Pritchard, Sharon S. Barrett
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Nov 4, 1983
Inventors
Gordon Whiteley
Cynthia G. Pritchard
Sharon S. Barrett
Assignee (at issue)
Syntex (U.S.A.) LLC
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.