Granted Patent
Utility
US 5,406,943 · App. 08/002,914
Method of manufacturing a liquid shield
Inventors:
Vance M. Hubbard, Welton K. Brunson
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Jan 11, 1993
Inventors
Vance M. Hubbard
Welton K. Brunson
Assignee (at issue)
TCNL Technologies, 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.