Granted Patent
Utility
US 5,976,783 · App. 08/883,632
Bis-maleimido cross-linking agents
Inventors:
Michael Powell, Lutz F. Tietze
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Jun 26, 1997
Inventors
Michael Powell
Lutz F. Tietze
Assignee (at issue)
Boehringer Mannheim GmbH
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.