Granted Patent
Utility
US 4,252,741 · App. 05/949,344
Carbonylation with Group VIII noble metal catalysts
Inventors:
Richard V. Porcelli, Vijay S. Bhise, Arnold J. Shapiro
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Oct 6, 1978
Inventors
Richard V. Porcelli
Vijay S. Bhise
Arnold J. Shapiro
Assignee (at issue)
Halcon Research and Development Corp.
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.