Granted Patent
Utility
US 4,576,852 · App. 06/542,962
Fusion of thermoplastic fabrics
Inventors:
Kenneth W. Burgess, William R. Bryant, Wayne K. Erickson
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: Oct 18, 1983
Inventors
Kenneth W. Burgess
William R. Bryant
Wayne K. Erickson
Assignee (at issue)
Phillips Petroleum 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.