The broken lines depict portions of the bit breaker in which the design is embodied that are not considered part of the claimed design.
The broken lines depict portions of the bit breaker in which the design is embodied that are not considered part of the claimed design.
Number | Name | Date | Kind |
---|---|---|---|
2223600 | Carleton | Dec 1940 | A |
4495840 | Freitag et al. | Jan 1985 | A |
4733789 | Olson | Mar 1988 | A |
6311789 | Saxman | Nov 2001 | B1 |
6536192 | King et al. | Mar 2003 | B2 |
7062991 | West et al. | Jun 2006 | B1 |
8002112 | Weaver et al. | Aug 2011 | B2 |
8327944 | King et al. | Dec 2012 | B2 |