Granted Patent
Utility
US 4,567,227 · App. 06/670,184
Blend of wholly aromatic polyester and poly(ester-amide) capable of exhibiting an anisotropic melt phase
Inventor:
Gabor Kiss
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: Nov 13, 1984
Inventor
Gabor Kiss
Assignee (at issue)
Celanese GmbH
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.