Granted Patent
Utility
US 4,312,975 · App. 06/045,447
Bisphenol-dicarboxylic acid diester and compositions thereof with linear aromatic polyester having improved processability
Inventors:
Gideon Salee, Jerold C. Rosenfeld
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Jun 4, 1979
Inventors
Gideon Salee
Jerold C. Rosenfeld
Assignee (at issue)
Hooker Chemicals & Plastics 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.