Rolling ruler
Description
FIG. 1 is a top, front, and left side perspective view of a rolling ruler showing my new design;
FIG. 2 is a top plan view;
FIG. 3 is a front elevational view;
FIG. 4 is a bottom plan view;
FIG. 5 is a rear elevational view; and
FIG. 6 is a right side elevational view, the left side being a mirror image thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D198935 | August 1964 | Elkins |
D261995 | November 24, 1981 | Kolodge |
306869 | October 1884 | Scott |
173354 | March 1986 | EPX |
163907 | February 1949 | DEX |
120143 | 1958 | SUX |
13302 | 1910 | GBX |
2118105 | October 1983 | GBX |
- Popular Mechanics, 5/1957, "Ruler on Wheels", p. 146. Popular Mechanics, 3/1959, "Ruler Rolls", p. 107.
Patent History
Patent number: D315873
Type: Grant
Filed: Nov 18, 1988
Date of Patent: Apr 2, 1991
Assignee: James Gregory McLaughlin (Queensland)
Inventor: Adam T. Laws (Balmain East)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Townsend and Townsend
Application Number: 7/273,431
Type: Grant
Filed: Nov 18, 1988
Date of Patent: Apr 2, 1991
Assignee: James Gregory McLaughlin (Queensland)
Inventor: Adam T. Laws (Balmain East)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Townsend and Townsend
Application Number: 7/273,431
Classifications
Current U.S. Class:
Combined (D10/62)