Chemical detergent block

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Information

Patent Grant
D334421

References
Source

Patent Number
D334,421
Date Filed
Tuesday, May 14, 1991
33 years ago
Date Issued
Tuesday, March 30, 1993
31 years ago

Inventors
Original Assignees
- Ecolab Inc.
Examiners
- Burke; Wallace R.
- Brown; Melody
Agents
- Merchant, Gould, Smith, Edell, Welter & Schmidt

US Classifications
Field of Search
- US
- D23 207
- D28 81
- D24 100-104
- 252 90
- 252 92
- 252 134
- 252 174
- 252 DIG 2
- 252 DIG 3
- 403 305
- 434 278
- 206 05
- 206 5241
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a chemical detergent block, as shown.

US Referenced Citations (15)

Number	Name	Date	Kind
D280757	Paulovich et al.	Sep 1985
D283649	Casberg	Apr 1986
D285729	Tovey	Sep 1986
D304244	Tovey	Oct 1989
683181	Mereness	Sep 1901
692481	Robinson	Feb 1902
1267949	Williams	May 1918
3925225	Morrison	Dec 1975
4569780	Fernholz et al.	Feb 1986
4683072	Holdt et al.	Jul 1987
4835804	Arnau-Munoz et al.	Jun 1989
4942973	Bowie	Jul 1990
4944165	Leebeek et al.	Jul 1990
5122158	Kuroda et al.	Jun 1992
5133892	Chun et al.	Jul 1992

Foreign Referenced Citations (1)

Number	Date	Country
0245760	Jun 1987	EPX