Granted Patent
Utility
US 5,455,304 · App. 08/395,222
Urea derivatives of maleated polyolefins
Inventor:
Thomas D. Roberts
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Feb 27, 1995
Inventor
Thomas D. Roberts
Assignee (at issue)
Eastman Chemical Company
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.