U.S. patent number D277,143 [Application Number 06/191,601] was granted by the patent office on 1985-01-15 for chair. This patent grant is currently assigned to Haworth Mfg., Inc.. Invention is credited to Charles D. Helmholdt.
United States Patent | D277,143 |
Helmholdt | * January 15, 1985 |
Inventors: | Helmholdt; Charles D. (Caledonia Township, Kent County, MI) |
---|---|
Assignee: | Haworth Mfg., Inc. (Holland,
MI) |
[*] Notice: | The portion of the term of this patent subsequent to November 27, 1998 has been disclaimed. |
Appl. No.: | 06/191,601 |
Filed: | September 29, 1980 |
Current U.S. Class: | D6/366 |
Field of Search: | ;D6/20,26,30,31 |
D256740 | September 1980 | Acton |
D259000 | April 1981 | Vogtherr |
Design Catalog, 9-1976, p. 35, Chair upper right side of page, Hunting & Grandjean. . Industrial Design, Nov./Dec. 1978, p. 42, Chair right center by Blodee. . Steelcase Brochure entitled "Concentrx Plus". . Steelcase brochure entitled "ConCentrx/454"-pp. 1-12.. |
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