Granted Patent
Utility
US 4,477,955 · App. 06/393,055
Method of producing a lined structure
Inventors:
James R. Becker, Edward L. Raymond, David W. Cameron
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Jun 28, 1982
Inventors
James R. Becker
Edward L. Raymond
David W. Cameron
Assignee (at issue)
Cameron Iron Works, Inc.
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.