Granted Patent
Utility
US 5,502,150 · App. 08/267,732
Linear HDI urethane prepolymers for rim application
Inventors:
David D. Steppan, Ronald A. Cageao, Neil H. Nodelman, William E. Slack, Frank Sanns, Jr.
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Jun 29, 1994
Inventors
David D. Steppan
Ronald A. Cageao
Neil H. Nodelman
William E. Slack
Frank Sanns, Jr.
Assignee (at issue)
Bayer Aktiengesellschaft
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.