IP Library › Granted Patent US 6,257,150
Granted Patent Utility
US 6,257,150 · App. 09/578,376

Rapid discharge railcar door

Inventor: Michael K. Burke
Patented Case View Patent ↗
Granted: Jul 10, 2001 Filed: May 25, 2000
Inventor
Michael K. Burke
Assignee (at issue)
ZefTek, Inc.

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Quick Facts
Patent No.
US 6,257,150
App. No.
09/578,376
Filed
2000-05-25
Granted
2001-07-10
Kind
A