Top portion for a canister-type suction apparatus

- DUPRO AG
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a top portion for a canister type suction apparatus showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image; and

FIG. 3 is a top plan view thereof.

The rear of the claimed design is suggested by FIGS. 2 and 3 and features no additional distinguishing elements.

Referenced Cited
U.S. Patent Documents
D230692 March 1974 Wachsman
2956734 October 1960 Doyle
3082465 March 1963 Wood
4330899 May 25, 1982 Miller et al.
4435877 March 13, 1984 Berfield
Patent History
Patent number: D283066
Type: Grant
Filed: Sep 22, 1983
Date of Patent: Mar 18, 1986
Assignee: DUPRO AG (Romanshorn)
Inventor: Siegfried Maier (Stetten)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lynn Wilder
Law Firm: Becker & Becker, Inc.
Application Number: 6/534,552
Classifications
Current U.S. Class: Circular Canister In Plan (D32/23)