Granted Patent
Utility
US 4,485,877 · App. 06/390,750
Wall penetrating fire extinguishing device
Inventors:
Stewart G. McMillan, Robert W. Steingass, Clyde H. McMillan
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Jun 21, 1982
Inventors
Stewart G. McMillan
Robert W. Steingass
Clyde H. McMillan
Assignee (at issue)
Fire Task Force Innovations, 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.