Granted Patent
Utility
US 4,870,128 · App. 07/169,652
Hot melt gaskets
Inventors:
Marysusan Couturier, Donna Trainor
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Mar 18, 1989
Inventors
Marysusan Couturier
Donna Trainor
Assignee (at issue)
W.R. Grace & Co. Conn.
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.