U.S. patent number D547,642 [Application Number D/236,399] was granted by the patent office on 2007-07-31 for wrap-around joint bar sleeve insulator. This patent grant is currently assigned to Portec Rail Products, Inc.. Invention is credited to Patrick J. Boario, John M. Downey, John W. Mospan, W. Thomas Urmson, Jr..
United States Patent | D547,642 |
Urmson, Jr. , et al. | July 31, 2007 |
Inventors: | Urmson, Jr.; W. Thomas (Valencia, PA), Mospan; John W. (Pittsburgh, PA), Downey; John M. (Ashland, KY), Boario; Patrick J. (Allegheny Township, PA) |
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Assignee: | Portec Rail Products, Inc.
(Pittsburgh, PA) |
Appl. No.: | D/236,399 |
Filed: | August 15, 2005 |
Current U.S. Class: | D8/382 |
Current International Class: | 0808 |
Field of Search: | ;D8/377,382,349,354,371,373 ;D25/119-24,25 ;52/730.3,730.6,712,715 ;D21/564 ;248/200,215,300 |
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