The broken lines shown in the figures are for the purpose of illustrating portions of the conveyor pulley and form no part of the claimed design.
The broken lines shown in the figures are for the purpose of illustrating portions of the conveyor pulley and form no part of the claimed design.
Number | Name | Date | Kind |
---|---|---|---|
1980777 | Zollinger | Nov 1934 | A |
2087813 | Peterson | Jul 1937 | A |
2886169 | Calder | May 1959 | A |
3354735 | Holz | Nov 1967 | A |
3626773 | Loeffler | Dec 1971 | A |
3648826 | Brooks | Mar 1972 | A |
3661246 | Faunce | May 1972 | A |
4180155 | Stevick | Dec 1979 | A |
4284409 | Van Teslaar | Aug 1981 | A |
4324495 | Martinez | Apr 1982 | A |
4499992 | Paulson et al. | Feb 1985 | A |
4913279 | Tonissen | Apr 1990 | A |
5213202 | Arnold | May 1993 | A |
8739965 | Laughlin | Jun 2014 | B2 |
Entry |
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Powerpoint presentation by Douglas Manufacturing. |
Sales brochure from Douglas Manufacturing dated 2015 or earlier. |
Sales brochure from Applicant for related product publicly available as early as 2008-2009. |