Granted Patent
Utility
US 4,546,142 · App. 06/689,697
Inhibiting styrene emissions in unsaturated polyester resins
Inventor:
Leonard M. Walewski
Patented Case
View Patent ↗
Granted: Oct 8, 1985
Filed: Jan 8, 1985
Inventor
Leonard M. Walewski
Assignee (at issue)
United States Steel 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.