Chemical detergent block
Latest Ecolab Inc. Patents:
Description
FIG. 1 is a perspective view of a chemical detergent block showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a first side elevational view thereof; and,
FIG. 5 is a second side elevational view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D280757 | September 24, 1985 | Paulovich et al. |
D283649 | April 29, 1986 | Casberg |
D285729 | September 16, 1986 | Tovey |
D304244 | October 24, 1989 | Tovey |
683181 | September 1901 | Mereness |
692481 | February 1902 | Robinson |
1267949 | May 1918 | Williams |
3925225 | December 1975 | Morrison |
4569780 | February 11, 1986 | Fernholz et al. |
4683072 | July 28, 1987 | Holdt et al. |
4835804 | June 6, 1989 | Arnau-Munoz et al. |
4942973 | July 24, 1990 | Bowie |
4944165 | July 31, 1990 | Leebeek et al. |
5122158 | June 16, 1992 | Kuroda et al. |
5133892 | July 28, 1992 | Chun et al. |
0245760 | June 1987 | EPX |
Patent History
Patent number: D334421
Type: Grant
Filed: May 14, 1991
Date of Patent: Mar 30, 1993
Assignee: Ecolab Inc. (St. Paul, MN)
Inventors: Elizabeth J. Gladfelter (Falcon Heights, MN), Tina O. Outlaw (Inver Grove Heights, MN), James L. Copeland (Burnsville, MN), Rhonda K. Schulz (Burnsville, MN), Daniel K. Boche (Eagan, MN), Jeff W. Peterson (Minnetonka, MN)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Melody Brown
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 7/699,947
Type: Grant
Filed: May 14, 1991
Date of Patent: Mar 30, 1993
Assignee: Ecolab Inc. (St. Paul, MN)
Inventors: Elizabeth J. Gladfelter (Falcon Heights, MN), Tina O. Outlaw (Inver Grove Heights, MN), James L. Copeland (Burnsville, MN), Rhonda K. Schulz (Burnsville, MN), Daniel K. Boche (Eagan, MN), Jeff W. Peterson (Minnetonka, MN)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Melody Brown
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 7/699,947
Classifications