U.S. patent number D391,376 [Application Number D/037,423] was granted by the patent office on 1998-02-24 for retaining wall block. This patent grant is currently assigned to Handy-Stone Corporation. Invention is credited to Peter J. Blomquist, Todd P. Strand.
United States Patent | D391,376 |
Strand , et al. | February 24, 1998 |
**Please see images for: ( Certificate of Correction ) ** |
Inventors: | Strand; Todd P. (Marine on St. Croix, MN), Blomquist; Peter J. (Lake Elmo, MN) |
---|---|
Assignee: | Handy-Stone Corporation
(Oakdale, MN) |
Appl. No.: | D/037,423 |
Filed: | April 12, 1995 |
Current U.S. Class: | D25/113 |
Current International Class: | 2501 |
Field of Search: | ;D25/113-118 ;D21/108 ;52/592.6,592.5,604,606,608,390-392,DIG.9,102 ;404/42 ;405/284-286 |
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MINITALUS.sup.MC UNIVERSEL.sup.MC , Permacon, Apr. 1993. . EZ Wall Systems, "Unique NEW retaining Wall Product", Rockwood Retaining Wall Systems, Inc., (date unknown). . AZTECH Wall System, "Tradition and Technology", Block Systems, Incorporated, 1989. . Precast Concrete Retaining Walls, RISI Stone Lte., 1988. . Windsor Stone.RTM., Block Systems, Inc. 1991. . Tech Spec.RTM., Diamond Wall System, Anchor Block/Oscar Roberts, Sep. 1988. . GARDEN WALL.TM., KeyStone.TM. Retaining Wall Systems, 1991. . Anchor Edger.TM., You Can't Beat The anchor Do-It-Yourself System, 1993. . Anchor Windsor Stone.RTM., You Can't Beat The anchor Do-It-Yourself System, 1992. . Decor Innovative Concrete Systems, Sound Barrier Walls, 1989. . Declaration of Todd P. Strand regarding Handy-Stone.RTM. II Brochure including copy of Handy-Stone .RTM. Brochure.. |
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