Granted Patent
Utility
US 6,050,199 · App. 09/049,769
Hatch cover sealing device
Inventors:
John D. Anderson, Walter J. Peach
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Mar 27, 1998
Inventors
John D. Anderson
Walter J. Peach
Assignee (at issue)
ZefTek, 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.