The broken lines in the drawings depict unclaimed environmental subject matter.
The broken lines in the drawings depict unclaimed environmental subject matter.
| Number | Name | Date | Kind |
|---|---|---|---|
| D221975 | Nellis | Sep 1971 | S |
| D231092 | West | Apr 1974 | S |
| D254364 | Moll | Mar 1980 | S |
| 4900217 | Nelson | Feb 1990 | A |
| D313102 | Cano | Dec 1990 | S |
| 4993685 | Sparling | Feb 1991 | A |
| D351710 | Richardson | Oct 1994 | S |
| D358924 | Achenbach | May 1995 | S |
| 5894618 | Jacobsen | Apr 1999 | A |
| D428231 | Collins | Jul 2000 | S |
| D434542 | Wickstead | Nov 2000 | S |
| 6484344 | Cooper | Nov 2002 | B1 |
| D523609 | Toal | Jun 2006 | S |
| D610773 | Stanton | Feb 2010 | S |
| D735435 | Guido, III | Jul 2015 | S |
| D750338 | Ruotsalainen | Feb 2016 | S |
| 20020003340 | Hallquist | Jan 2002 | A1 |
| 20020118995 | Jensen | Aug 2002 | A1 |
| 20050186057 | Reicks | Aug 2005 | A1 |
| 20100061834 | Weich | Mar 2010 | A1 |