Granted Patent
Utility
US 5,379,507 · App. 08/099,985
Method of manufacturing a tank
Inventor:
John R. Lindahl
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Jul 30, 1993
Inventor
John R. Lindahl
Assignee (at issue)
State Industries, 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.