Granted Patent
Utility
US 5,453,457 · App. 08/151,224
Gamma-radiation-resistant polycarbonate composition
Inventors:
Aaron D. Meltzer, Harald Pielartzik, Rick L. Archey
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Nov 12, 1993
Inventors
Aaron D. Meltzer
Harald Pielartzik
Rick L. Archey
Assignee (at issue)
Bayer Aktiengesellschaft
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.