Granted Patent
Utility
US 6,039,043 · App. 09/013,953
Underwater air supply system
Inventors:
John H. Graber, Mitchell P. Pomerantz
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Jan 27, 1998
Inventors
John H. Graber
Mitchell P. Pomerantz
Assignee (at issue)
Johnson Worldwide Associates, 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.