IP Library › Granted Patent US 4,295,430
Granted Patent Utility
US 4,295,430 · App. 06/124,506

Railway hopper car latch mechanism

Inventors: Willis H. Knippel, Ray L. Ferris
Patented Case View Patent ↗
Granted: Oct 20, 1981 Filed: Feb 25, 1980
Inventors
Willis H. Knippel
Ray L. Ferris
Assignee (at issue)
The Pullman Company LLC

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Quick Facts
Patent No.
US 4,295,430
App. No.
06/124,506
Filed
1980-02-25
Granted
1981-10-20
Kind
A