Chair for dental patients

- A-Dec, Inc.

FIG. 1 is a perspective view of a chair for dental patients showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a left-side elevational view;

FIG. 5 is a right-side elevational view;

FIG. 6 is a rear elevational view; and,

FIG. 7 is a front elevational view.

Referenced Cited
U.S. Patent Documents
D234071 January 1975 Booth
D333736 March 9, 1993 Nordstrom
D336381 June 15, 1993 Nordstrom
D347946 June 21, 1994 Nordstrom et al.
D351742 October 25, 1994 Phleps et al.
D361438 August 22, 1995 Spencer et al.
3804460 April 1974 Leffler
3817576 June 1974 Ciavattoni et al.
4114274 September 19, 1978 Jones
4541671 September 17, 1985 Broadhead et al.
4878709 November 7, 1989 Okamoto
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Foreign Patent Documents
2157291 January 1973 DEX
Other references
  • 8-page brochure entitled "Safety Zone--PROTection for Professionals--THE PROII," Belmont Equipment Corp., New Jersey; Oct. 1986. Catalogue excerpt, "Chairs and Stools," showing Decade.RTM. Units 2040/2041/2042 (pp. 21-22) Sep. 1991. 1-page advertisement for the "System 5000E" chair; Pelson & Crane, circa Jan. 1991. 2-page brochure entitled "2009, Prima ed Unica" Technodent, Jan. 1986. 8-page brochure entitled "PM 2002 CC," Planmeca, Inc., Illinois, circa Jan. 1990. 6-page brochure entitled "2009EU," Tecnodent, Italy Oct. 1992.
Patent History
Patent number: D378961
Type: Grant
Filed: Sep 27, 1995
Date of Patent: Apr 29, 1997
Assignee: A-Dec, Inc. (Newberg, OR)
Inventors: Carl G. Nordstrom (Lake Oswego, OR), William R. Stewart (Tigard, OR), Victor D. Rogers (Portland, OR), Brad A. Rice (Keizer, OR)
Primary Examiner: Gary D. Watson
Law Firm: Klarquist Sparkman Campbell Leigh & Whinston, LLP
Application Number: 0/44,745
Current U.S. Class: D/6361; D6/361