Granted Patent
Utility
US 4,623,558 · App. 06/738,809
Reactive plastisol dispersion
Inventor:
Shiow-Ching Lin
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: May 29, 1985
Inventor
Shiow-Ching Lin
Assignee (at issue)
W. R. Grace & 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.