Cover for a printing plate developer tank

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Description

FIG. 1 is a top, back side, left and perspective view of a cover for a printing plate developer tank, showing our new design;

FIG. 2 is a top view thereof, being a mirror image thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof; and,

FIG. 7 is a right view thereof.

Referenced Cited
U.S. Patent Documents
D146760 May 1947 Carpenter
D244446 May 24, 1977 Maass
D326784 June 9, 1992 Beery et al.
3856395 December 1974 Comstock
4645324 February 24, 1987 Wnukiewicz, Jr.
4958666 September 25, 1990 Kocourek et al.
Foreign Patent Documents
0004326 October 1979 EPX
17205 1900 GBX
Patent History
Patent number: D338233
Type: Grant
Filed: May 3, 1991
Date of Patent: Aug 10, 1993
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventors: Ronald C. Boleen (White Bear Lake, MN), Charles R. Smith (Marine, MN)
Primary Examiner: A. Hugo Word
Assistant Examiner: Cathy Anne MacCormac
Attorneys: Gary L. Griswold, Walter N. Kirn, Mark A. Litman
Application Number: 7/695,709