Granted Patent
Utility
US 4,379,878 · App. 06/310,954
Food-grade vinyl halide polymer compositions stabilized with monoalkyltin compounds
Inventor:
William A. Larkin
Patented Case
View Patent ↗
Granted: Apr 12, 1983
Filed: Oct 13, 1981
Inventor
William A. Larkin
Assignee (at issue)
M&T Chemicals, Inc.
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.