Granted Patent
Utility
US 4,124,643 · App. 05/821,364
Preparation of 3-fluorosalicylaldehyde
Inventors:
Michael Martan, Dusan J. Engel
Patented Case
View Patent ↗
Granted: Nov 7, 1978
Filed: Aug 3, 1977
Inventors
Michael Martan
Dusan J. Engel
Assignee (at issue)
UOP LLC
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.