IP Library › Granted Patent US 6,604,690
Granted Patent Utility
US 6,604,690 · App. 10/012,357

Concrete rail tie

Inventor: Hartley F. Young
Patented Case View Patent ↗
Granted: Aug 12, 2003 Filed: Dec 12, 2001
Inventor
Hartley F. Young
Assignees (at issue)
Engineering Invention Pty Ltd.
AirBoss Railway Products Inc.

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Quick Facts
Patent No.
US 6,604,690
App. No.
10/012,357
Filed
2001-12-12
Granted
2003-08-12
Kind
B2