U.S. patent number D378,702 [Application Number D/042,376] was granted by the patent office on 1997-04-01 for edging block. This patent grant is currently assigned to Handy-Stone Corporation. Invention is credited to Peter J. Blomquist, Todd P. Strand.
United States Patent | D378,702 |
Blomquist , et al. | April 1, 1997 |
Inventors: | Blomquist; Peter J. (Lake Elmo, MN), Strand; Todd P. (Marine on St. Croix, MN) |
---|---|
Assignee: | Handy-Stone Corporation
(Oakdale, MN) |
Appl. No.: | D/042,376 |
Filed: | August 9, 1995 |
Current U.S. Class: | D25/113 |
Field of Search: | ;D25/113-118 ;D21/108 ;52/604,605,606,596,102 ;446/125,127,106 |
1034228 | Nov 1953 | FR | |||
Edgerock.TM. by Keystone Retaining Wall Systems, citing U.S. Patent Nos. 5,078,940 and 5,217,630. . SELECTedge, ICD.TM. Corporation. . Precast Concrete Retaining Walls, RISI Stone Ltd., 1988. . Anchor Windsor Stone.RTM., Anchor Wall Systems, Inc., 1993. . Anchor Edger.TM., Anchor Wall Systems, Inc. 1993. . Handy-Stone.RTM.II, Handy-Stone Corporation 1994. . Decor Versa-Lok.RTM., Innvoate Concrete Systems, Sound Barrier Walls, 1989.. |
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