Granted Patent
Utility
US 4,941,470 · App. 07/142,743
Face mask with ear loops and method for forming
Inventors:
Vance M. Hubbard, Welton K. Brunson
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Jan 11, 1988
Inventors
Vance M. Hubbard
Welton K. Brunson
Assignee (at issue)
Tecnol, 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.