Granted Patent
Utility
US 4,814,508 · App. 07/175,646
Friedel-crafts preparation of aromatic ketones
Inventors:
Heinrich C. Gors, Patrick J. Horner, Viktors Jansons
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Mar 21, 1988
Inventors
Heinrich C. Gors
Patrick J. Horner
Viktors Jansons
Assignee (at issue)
Raychem Limited
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.