Adjustable level

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Description

FIG. 1 is a fragmentary perspective view of one end of the adjustable level showing my new design;

FIG. 2 is a rear perspective view of the level indicator slide shown separately for ease of illustration;

FIG. 3 is a top plan view of FIG. 1 on a reduced scale, the opposite end shown broken away to indicate indeterminate length.

The bottom surfaces of all figures are flat, plain, and unornamented.

Referenced Cited
U.S. Patent Documents
D229225 November 1973 Covey
D244837 June 28, 1977 Thingstad
565098 August 1896 Traut
926661 June 1909 Leiby
1794254 February 1931 Sherwood
2512654 June 1950 Kennedy
2551524 May 1951 Bullivant
Patent History
Patent number: D257671
Type: Grant
Filed: Mar 12, 1979
Date of Patent: Dec 23, 1980
Inventor: Clayton A. Elliott (Union, NJ)
Primary Examiner: Nelson C. Holtje
Attorney: Martha G. Pugh
Application Number: 6/19,707
Classifications
Current U.S. Class: Spirit Level (D10/69); Liquid Container Adjustable On Reference-surface Section (33/384)
International Classification: D1004;