Granted Patent
Utility
US 4,536,549 · App. 06/524,114
Heat-sterilizable polyolefin compositions and articles manufactured therefrom
Inventors:
Kiyoshi Hattori, John H. Myers
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Aug 18, 1983
Inventors
Kiyoshi Hattori
John H. Myers
Assignee (at issue)
El Paso Polyolefins 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.