Granted Patent
Utility
US 5,900,464 · App. 08/677,793
Processes for making methacrylate and acrylate polymers
Inventors:
Robert James Letchford, James A. Schwindeman, Conrad W. Kamienski, Roderic P. Quirk
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jul 10, 1996
Inventors
Robert James Letchford
James A. Schwindeman
Conrad W. Kamienski
Roderic P. Quirk
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.