Granted Patent
Utility
US 5,473,029 · App. 08/213,658
Process for preparing butyl polymers with allylic halide functionality
Inventor:
Akhtar Osman
Patented Case
View Patent ↗
Granted: Dec 5, 1995
Filed: Mar 15, 1994
Inventor
Akhtar Osman
Assignee (at issue)
Bayer Rubber Inc.
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.