Granted Patent
Utility
US 4,894,426 · App. 07/234,221
Fast-cure polyurethane sealant composition containing silyl-substituted piperazine accelerators
Inventors:
Jamil Baghdachi, Keith H. Mahoney
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Aug 19, 1988
Inventors
Jamil Baghdachi
Keith H. Mahoney
Assignee (at issue)
BASF SE
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.