Granted Patent
Utility
US 4,563,508 · App. 06/611,806
Injection moldable aromatic polyesters compositions and method of preparation
Inventors:
Steve G. Cottis, Richard Layton, Nathan D. Field
Patented Case
View Patent ↗
Granted: Jan 7, 1986
Filed: May 18, 1984
Inventors
Steve G. Cottis
Richard Layton
Nathan D. Field
Assignee (at issue)
Dart Industries Inc.
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.