Granted Patent
Utility
US 4,983,779 · App. 07/450,459
Process for the preparation of vinyl ethers
Inventor:
Arthur P. Schaap
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Dec 14, 1989
Inventor
Arthur P. Schaap
Assignee (at issue)
THE BOARD OF GOVERNORS OF WAYNE STATE UNIVERSITY
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.