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 |
---|---|---|---|
2904831 | Frohlich | Sep 1959 | A |
4105379 | Gazuit | Aug 1978 | A |
5744169 | Fujieda et al. | Apr 1998 | A |
8282373 | Fujieda et al. | Oct 2012 | B2 |
20080299241 | Price | Dec 2008 | A1 |
20110200698 | Fujieda et al. | Aug 2011 | A1 |
20120319330 | Mizuta et al. | Dec 2012 | A1 |