U.S. patent number D309,446 [Application Number 07/179,008] was granted by the patent office on 1990-07-24 for mini programmable logic controller.
This patent grant is currently assigned to Square D Company. Invention is credited to Walter M. Russell.
United States Patent |
D309,446 |
Russell |
July 24, 1990 |
Mini programmable logic controller
Claims
The ornamental design for a mini programmable logic controller, as
shown.
Inventors: |
Russell; Walter M. (Houston,
TX) |
Assignee: |
Square D Company (Palatine,
IL)
|
Appl.
No.: |
07/179,008 |
Filed: |
April 8, 1988 |
Current U.S.
Class: |
D13/162.1 |
Field of
Search: |
;D13/12,35,40,41,99
;D14/100,101,114 ;361/331-334,346,390-394
;364/141,146,147,188,190-193 ;901/3,4,5 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Other References
Square D Company, 1987 brochure, "Programmable and Cell Controller
Product Overview"..
|
Primary Examiner: Lucas; Susan J.
Assistant Examiner: Sincavage; Joel
Attorney, Agent or Firm: Femal; Michael J.
Description
FIG. 1 is a top, left, front perspective view of a
mini-programmable logic controller showing my new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a bottom plan view thereof.
* * * * *