Granted Patent
Utility
US 4,417,015 · App. 06/232,108
Low toxic polyvinylchloride stabilizers
Inventors:
Ramchandra K. Hulyalkar, Gerald A. Baum, Kanayo Hotchandani
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Feb 6, 1981
Inventors
Ramchandra K. Hulyalkar
Gerald A. Baum
Kanayo Hotchandani
Assignee (at issue)
Dart Industries 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.