One of my long lost kin did early design work on tank suspensions. Had one that exceeded 100 MPH!
No Uncle Sam did not want them, a few years later most had them.
You can tell he was a pioneer in his field!
Many arrows in his back.
No money!
http://en.wikipedia.org/wiki/J._Walter_Christie
Hiram Maxim tried to sell his machine gun to the US Army and they turned him down. Then someone gave him good advice: Those Europeans are always looking for better ways to kill each other so he over to Europe; we all know how that turned out.
No Uncle Sam did not want them, a few years later most had them.
I saw a show some years ago about that. The Russians bought the design and it was used on the T-34 tank.The German Panther 4 and 5 used the same suspension.