Writing board
Latest Vertiflex Company Patents:
Description
FIG. 1 is a perspective view of a writing board, showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevational view, the opposite side being a mirror image thereof;
FIG. 4 is an end elevational view;
FIG. 5 is an end elevational view of the end opposite that shown in FIG. 4; and
FIG. 6 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
| D114382 | April 1939 | Kemp |
| D127480 | May 1941 | Corcoran |
| D140921 | April 1945 | Vermann |
| D159473 | August 1950 | Cottier |
| D174188 | March 1955 | Martin |
| D231956 | June 1974 | Meagher |
| D268687 | April 19, 1983 | Rogers |
| D276732 | December 11, 1984 | Marquez |
| D279630 | July 16, 1985 | Bart |
| D282792 | March 4, 1986 | Zinbarg |
| D308542 | June 12, 1990 | De Witt |
Patent History
Patent number: D315366
Type: Grant
Filed: Nov 2, 1987
Date of Patent: Mar 12, 1991
Assignee: Vertiflex Company (Chicago, IL)
Inventor: Randy S. Greenspahn (Wilmette, IL)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Attorney: Garrettson Ellis
Application Number: 7/115,359
Type: Grant
Filed: Nov 2, 1987
Date of Patent: Mar 12, 1991
Assignee: Vertiflex Company (Chicago, IL)
Inventor: Randy S. Greenspahn (Wilmette, IL)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Attorney: Garrettson Ellis
Application Number: 7/115,359