Granted Patent
Utility
US 4,535,146 · App. 06/607,983
Polyester formulations having flexibility properties
Inventor:
Aram Mekjian
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: May 7, 1984
Inventor
Aram Mekjian
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.