Call button indicator and wall plate for elevators

- Otis Elevator Company
Description

FIG. 1 is a front elevational view of a call button indicator and wall plate for elevators showing our new design, with the broken lines showing environment only and forming no part of the claimed design;

FIG. 2 is a left side elevational view thereof, with the right side being a mirror image;

FIG. 3 is a top plan view thereof with the bottom being a mirror image; and

FIG. 4 is a perspective view thereof.

The broken lines shown in the drawings illustrate the wall environment on which the article is mounted and are not a part of the design.

Referenced Cited
U.S. Patent Documents
D121273 July 1940 Davis
D185631 July 1959 Dreyfuss
D186225 September 1959 Sims
D197278 January 1964 Stevenson
3237591 March 1966 Pichel
Patent History
Patent number: D318632
Type: Grant
Filed: May 4, 1989
Date of Patent: Jul 30, 1991
Assignee: Otis Elevator Company (Farmington, CT)
Inventors: Richard R. Polacek (Simsbury, CT), Jean Youla (Hartford, CT)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Attorney: William W. Jones
Application Number: 7/348,731
Classifications