Granted Patent
Utility
US 5,756,820 · App. 08/890,248
Propargyl Ethers
Inventor:
Robert Eugene Hormann
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jul 9, 1997
Inventor
Robert Eugene Hormann
Assignee (at issue)
Rohm and Haas Company
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.