Tank cleaning spray head

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Information

Patent Grant
D293812

References
Source

Patent Number
D293,812
Date Filed
Wednesday, July 31, 1985
39 years ago
Date Issued
Tuesday, January 19, 1988
37 years ago

Inventors
- Samuel O. Roth
Original Assignees
- Holdren Brothers, Inc.
Examiners
- Burke; Wallace R.
- Takemoto; Ruth
Agents
- Biebel, French & Nauman

US Classifications
- D23 - Environmental heating and cooling
- D32 - Washing, cleaning, or drying machine
Field of Search
- US
- D23 17-18
- D23 35
- 237 558-559
- 237 561
- 237 5331
- 237 589
- 237 596
- 237 DIG 13
- 237 DIG 19
- D32 25
- 015 321
- 015 322
- 015 415 R-422
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a tank cleaning spray head, substantially as shown.

US Referenced Citations (5)

Number	Name	Date	Kind
1276245	Millard et al.	Aug 1918
2954038	Girard	Sep 1960
3529774	Apri	Sep 1970
3592575	Jaeger	Jul 1971
3776464	Proffit	Dec 1973