Granted Patent
Utility
US 5,705,679 · App. 08/627,960
Honeycomb catalyst for vinyl acetate synthesis
Inventors:
Ioan Nicolau, Philip M. Colling, Leland R. Johnson
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Apr 2, 1996
Inventors
Ioan Nicolau
Philip M. Colling
Leland R. Johnson
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.