Combined ruler and writing instrument unit
Description
FIG. 1 is a top perspective view of a combined ruler and writing instrument unit showing my new design;
FIG. 2 is a top plan view;
FIG. 3 is a bottom plan view;
FIG. 4 is a right end elevational view;
FIG. 5 is a left end elevational view;
FIG. 6 is a right side elevational view;
FIG. 7 is a left side elevational view; and
FIG. 8 is a top perspective view in an exploded condition with the writing tip portion of the writing instrument barrels shown in a fully extended condition.
Referenced Cited
U.S. Patent Documents
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D193410 | August 1962 | Reichenthal |
D258911 | April 14, 1981 | Sandel |
D261612 | November 3, 1981 | Henkels |
D264824 | June 8, 1982 | Sandel |
D267552 | January 11, 1983 | Seely, Jr. et al. |
D272421 | January 31, 1984 | Sandel |
422701 | March 1890 | Benzinger et al. |
469593 | February 1892 | Patterson |
1227614 | May 1917 | Hauptman |
2026768 | January 1936 | Aronson |
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3195235 | July 1965 | Regan |
Patent History
Patent number: D318489
Type: Grant
Filed: Nov 17, 1988
Date of Patent: Jul 23, 1991
Inventor: Hu Cho-Kai (Taipei)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Law Firm: Armstrong, Nikaido, Marmelstein, Kubovcik & Murray
Application Number: 7/272,654
Type: Grant
Filed: Nov 17, 1988
Date of Patent: Jul 23, 1991
Inventor: Hu Cho-Kai (Taipei)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Law Firm: Armstrong, Nikaido, Marmelstein, Kubovcik & Murray
Application Number: 7/272,654
Classifications