Granted Patent
Utility
US 6,008,280 · App. 08/975,477
Polycarbonate compositions having good mold-release properties
Inventors:
Sivaram Krishnan, Jon M. Newcome, James B. Johnson, Ramesh M. Pisipati, Jeffrey M. Tennant
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Nov 20, 1997
Inventors
Sivaram Krishnan
Jon M. Newcome
James B. Johnson
Ramesh M. Pisipati
Jeffrey M. Tennant
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.