Granted Patent
Utility
US 5,169,697 · App. 07/528,436
Seaming tape for composite chemical barrier fabrics and method of forming bonded seams
Inventors:
John D. Langley, Edward A. Williams
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: May 25, 1990
Inventors
John D. Langley
Edward A. Williams
Assignee (at issue)
Kappler Safety Group
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.