Granted Patent
Utility
US 4,245,565 · App. 05/882,022
Cambered hatch cover seal arrangement
Inventors:
Marvin Stark, Clement J. Kniola
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Feb 28, 1978
Inventors
Marvin Stark
Clement J. Kniola
Assignee (at issue)
The Pullman Company LLC
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.