The broken lines in the drawings represent unclaimed environmental subject matter.
The broken lines in the drawings represent unclaimed environmental subject matter.
Number | Name | Date | Kind |
---|---|---|---|
D245596 | Cohen et al. | Aug 1977 | S |
4298211 | Shitamori | Nov 1981 | A |
5133461 | Martinell | Jul 1992 | A |
D328882 | Martinell | Aug 1992 | S |
D409134 | Will | May 1999 | S |
5988403 | Robideau | Nov 1999 | A |
5992645 | West | Nov 1999 | A |
7028850 | Sargisian | Apr 2006 | B1 |
7055700 | West | Jun 2006 | B2 |
D543906 | Hoadley et al. | Jun 2007 | S |