The broken lines shown in the drawings represent portions of the auto-darkening welding helmet that form no part of the claimed design.
The broken lines shown in the drawings represent portions of the auto-darkening welding helmet that form no part of the claimed design.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2018 3 0133355 | Apr 2018 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3298031 | Morgan | Jan 1967 | A |
| D317063 | Johnson | May 1991 | S |
| D459837 | Dupuis | Jul 2002 | S |
| D556384 | Dupuis | Nov 2007 | S |
| D567366 | Betz et al. | Apr 2008 | S |
| D574486 | Betz et al. | Aug 2008 | S |
| D584010 | Fernandes et al. | Dec 2008 | S |
| D587858 | Brace et al. | Mar 2009 | S |
| D590547 | Brace et al. | Apr 2009 | S |
| D590548 | Johnson et al. | Apr 2009 | S |
| D597260 | Brace et al. | Jul 2009 | S |
| D597710 | Brace et al. | Aug 2009 | S |
| D612544 | Brace et al. | Mar 2010 | S |
| 8056152 | Brace | Nov 2011 | B2 |
| D660522 | Juhlin et al. | May 2012 | S |
| 8534279 | Brace et al. | Sep 2013 | B2 |
| D734559 | Noordzij | Jul 2015 | S |
| D806318 | Yang | Dec 2017 | S |
| 9848667 | Brace et al. | Dec 2017 | B2 |
| 9861529 | Seo | Jan 2018 | B2 |
| D876530 | Wu | Feb 2020 | S |