Granted Patent
Utility
US 6,706,821 · App. 09/908,485
Michael addition products of amine terminated polyolefins and polyfunctional acrylates
Inventor:
Robert James Letchford
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Jul 18, 2001
Inventor
Robert James Letchford
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.