Picture plane grid viewer

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Description

FIG. 1 is a perspective view of a picture plane grid viewer showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a cross-sectional view of the picture plane grid viewer taken along line 4--4 of FIG. 3.

FIG. 5 is a cross-sectional view of the picture plane grid viewer taken along line 5--5 of FIG. 3.

Referenced Cited
U.S. Patent Documents
1282382 October 1918 Cross
1821252 September 1931 Woods
2487690 November 1949 Black et al.
3660903 May 1972 Caperton
3939564 February 24, 1976 Slawinski
4001941 January 11, 1977 Cruz
Other references
  • American Artist, vol. 43, Iss. 440, 3/79, p. 24 bottom left.
Patent History
Patent number: D263481
Type: Grant
Filed: May 24, 1979
Date of Patent: Mar 23, 1982
Inventor: Philip L. Vest (Columbus, OH)
Primary Examiner: George P. Word
Law Firm: Millard & Cox
Application Number: 6/42,102
Classifications
Current U.S. Class: Equipment For Writing, Drawing, Or For Fine Arts (D19/35); Guide (6) (D19/37)
International Classification: D1906;