 
                 Patent Grant
 Patent Grant
                     5984311
 5984311
                    | Number | Name | Date | Kind | 
|---|---|---|---|
| 2000369 | Zeiss | May 1935 | |
| 5056798 | Wherley | Oct 1991 | |
| 5145183 | Gates | Sep 1992 | |
| 5193818 | Leeson | Mar 1993 | 
| Entry | 
|---|
| Roadtrip Game Rules and Activity Pad Sample from Road Trip Game by ToySense Inc. No date known. | 
| License Plate Games from Interstate Directory Publishing Company Dec. 1995. |