Granted Patent
Utility
US 5,872,203 · App. 08/533,640
Polyurethane adhesive composition for bonding polymeric roofing materials to roof-deck substrates
Inventors:
Wei-Jian Wen, Brian Jonathan Briddell, Kathleen Lamb
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Sep 25, 1995
Inventors
Wei-Jian Wen
Brian Jonathan Briddell
Kathleen Lamb
Assignee (at issue)
ADCO PROUCTS, LLC
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.