Granted Patent
Utility
US 5,206,404 · App. 07/873,867
Triaryl phosphate ester composition and process for its preparation
Inventors:
Louis T. Gunkel, Douglas G. Placek, Michael Marino, John Crosby, Sundeep G. Shankwalkar
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Apr 27, 1992
Inventors
Louis T. Gunkel
Douglas G. Placek
Michael Marino
John Crosby
Sundeep G. Shankwalkar
Assignee (at issue)
FMC 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.