Granted Patent
Utility
US 6,344,521 · App. 09/480,511
Protected functionalized diene and alkenyl substituted aromatic silicone triblock copolymers and processes for making the same
Inventors:
James A. Schwindeman, Robert James Letchford
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Jan 10, 2000
Inventors
James A. Schwindeman
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.