Fractional block set
Description
FIG. 1 is a front perspective view of a fractional block set showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a side elevational view thereof, the other side being a mirror image thereof;
FIG. 4 is an elevational view of one end thereof;
FIG. 5 is an elevational view of the other end thereof; and,
FIG. 6 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
2482402 | September 1949 | Corcodilos |
2876560 | March 1959 | Henley |
3094792 | June 1963 | Morgan et al. |
Patent History
Patent number: D307453
Type: Grant
Filed: Jun 24, 1986
Date of Patent: Apr 24, 1990
Assignee: Tangible Concepts, Inc. (Oklahoma City, OK)
Inventor: Charles A. Russel (Oklahoma City, OK)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Alicia A. Farrell
Attorney: Bill D. McCarthy
Application Number: 6/877,978
Type: Grant
Filed: Jun 24, 1986
Date of Patent: Apr 24, 1990
Assignee: Tangible Concepts, Inc. (Oklahoma City, OK)
Inventor: Charles A. Russel (Oklahoma City, OK)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Alicia A. Farrell
Attorney: Bill D. McCarthy
Application Number: 6/877,978
Classifications
Current U.S. Class:
D21/108