U.S. patent number D816,456 [Application Number D/590,843] was granted by the patent office on 2018-05-01 for gut hook bladed pipe slitter. This patent grant is currently assigned to Earth Tool Company LLC. The grantee listed for this patent is Earth Tool Company LLC. Invention is credited to Robert F. Crane, Mark D. Randa, Walter George Thompson.
United States Patent | D816,456 |
Crane , et al. | May 1, 2018 |
Inventors: | Crane; Robert F. (Nekoosa, WI), Randa; Mark D. (Summit, WI), Thompson; Walter George (Janesville, WI) | ||||||||||
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Applicant: |
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Assignee: | Earth Tool Company LLC (Lake
Mills, WI) |
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Family ID: | 57204718 | ||||||||||
Appl. No.: | D/590,843 | ||||||||||
Filed: | January 13, 2017 |
Application Number | Filing Date | Patent Number | Issue Date | ||
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15139995 | Apr 27, 2016 | ||||
Current U.S. Class: | D8/98 |
Current CPC Class: | F16L55/1658 20130101 |
Current International Class: | 0803 |
Field of Search: | ;D8/14,51,98 ;D15/139 |
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2001/0018007 | August 2001 | Puttmann |
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2015/0098765 | April 2015 | Randa |
2015/0198279 | July 2015 | Randa et al. |
United States Patent and Trademark Office, "Office Action Summary", dated Apr. 15, 2016, U.S. Pat. U.S. Appl. No. 14/509,859, 13 pages, Alexandria, VA. cited by applicant . United States Patent and Trademark Office, "Office Action Summary", dated Apr. 22, 2016, U.S. Pat. U.S. Appl. No. 14/668,383, 13 pages; Alexandria, VA. cited by applicant . United States Patent and Trademark Office, "Office Action Summary", dated Nov. 4, 2016, U,S. Pat. U.S. Appl. No. 18/139,995, 9 pages, Alexandria, VA. cited by applicant. |
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