Granted Patent
Utility
US 5,045,607 · App. 07/333,511
Acetal polymer blends
Inventors:
Kurt F. Wissbrun, Hongkyu Kim, George L. Collins, Diane Terrone
Patented Case
View Patent ↗
Granted: Sep 3, 1991
Filed: Apr 5, 1989
Inventors
Kurt F. Wissbrun
Hongkyu Kim
George L. Collins
Diane Terrone
Assignee (at issue)
Hoechst Celanese 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.