The broken lines of the bursting head depict unclaimed environmental subject matter.
The broken lines of the bursting head depict unclaimed environmental subject matter.
Number | Name | Date | Kind |
---|---|---|---|
3052454 | Sibley | Sep 1962 | A |
6109832 | Lincoln | Aug 2000 | A |
6269889 | Wentworth | Aug 2001 | B1 |
6340270 | Puttmann | Jan 2002 | B2 |
6357967 | Putnam | Mar 2002 | B1 |
6755593 | Wentworth | Jun 2004 | B2 |
6854932 | Putnam | Feb 2005 | B2 |
6913091 | Wentworth | Jul 2005 | B2 |
7624817 | Putnam | Dec 2009 | B2 |
8523489 | Putnam | Sep 2013 | B1 |
9360148 | Herrick | Jun 2016 | B2 |
20020081154 | Herrick | Jun 2002 | A1 |
20040218982 | Wentworth | Nov 2004 | A1 |
20070048091 | Tjader | Mar 2007 | A1 |
20100178113 | Tjader | Jul 2010 | A1 |
20110081205 | Tjader | Apr 2011 | A1 |
20110250020 | Carter | Oct 2011 | A1 |
20120321391 | Herrick | Dec 2012 | A1 |