U.S. patent number D497,326 [Application Number D/181,073] was granted by the patent office on 2004-10-19 for profiled bar. This patent grant is currently assigned to Portec Rail Products, Inc.. Invention is credited to John W. Mospan, W. Thomas Urmson, Jr..
United States Patent | D497,326 |
Urmson, Jr. , et al. | October 19, 2004 |
Inventors: | Urmson, Jr.; W. Thomas (Valencia, PA), Mospan; John W. (Pittsburgh, PA) |
---|---|
Assignee: | Portec Rail Products, Inc.
(Pittsburgh, PA) |
Appl. No.: | D/181,073 |
Filed: | May 2, 2003 |
Current U.S. Class: | D12/51 |
Current International Class: | 1203 |
Field of Search: | ;D12/49-51 ;238/151,159,180,185,162,166,242-244,229,173,DIG.1 |
1690471 | November 1928 | Breed |
1809104 | June 1931 | Breed et al. |
1935473 | November 1933 | Langford |
2403807 | July 1946 | Lansing |
2702161 | February 1955 | Lansing |
2717739 | September 1955 | Burkhardt et al. |
2785862 | March 1957 | Lansing |
2989240 | June 1961 | Lansing |
3027092 | March 1962 | Groff |
3107054 | October 1963 | Talboys |
3190558 | June 1965 | Griffiths |
Fig. 1 Prior Art Profiled Bar manufactured by Canadian Pacific Railway/Canadian National Railway. . Fig. 2 Prior Art Profiled Bar manufactured by Canadian National Railway. . Fig. 3 Prior Art Profiled Bar manufactured by Canadian Pacific Railway. . Fig. 4 Prior Art Profiled Bar manufactured by Jude Bar. . Fig. 5 Prior Art Profiled Bar manufactured by Jude Bar.. |
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