Granted Patent
Utility
US 5,667,621 · App. 08/444,638
Non-aqueous, adhesive-free method of bonding expanded polymeric parts
Inventors:
Thomas K. Dougherty, Norman H. Harris, James R. Chow
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: May 19, 1995
Inventors
Thomas K. Dougherty
Norman H. Harris
James R. Chow
Assignee (at issue)
Hughes Aircraft Company
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.