Double helix bookcase

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Description

FIG. 1 is a perspective view of a double helix bookcase showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a side elevation thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

The design is characterized by the base member as best illustrated in FIGS. 1 and 5.

Referenced Cited
U.S. Patent Documents
D209839 January 1968 Tisdall et al.
D284340 June 24, 1986 Berry, Jr.
D290203 June 9, 1987 Berry, Jr.
D292953 December 1, 1987 Cave
Other references
  • Ekornes catalog, 1983, p. 51, Uno 1. Abitare #257, 9/1987, #1. David Mark, 1986 Sopace Age Design Furniture brochure.
Patent History
Patent number: D316195
Type: Grant
Filed: Dec 23, 1987
Date of Patent: Apr 16, 1991
Assignee: Space Age Design Furniture (San Francisco, CA)
Inventor: David S. Mark (San Francisco, CA)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Jeffrey Asch
Law Firm: Limbach, Limbach & Sutton
Application Number: 7/137,380
Classifications
Current U.S. Class: D/6461; D/6499; D/6455; D/6479