Bulk material handling apparatus

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Information

Patent Grant
D271105

References
Source

Patent Number
D271,105
Date Filed
Tuesday, July 21, 1981
45 years ago
Date Issued
Tuesday, October 25, 1983
42 years ago

Inventors
- Roy O. Christianson
- Ted T. Christianson
Original Assignees
- Christianson Systems, Inc.
Examiners
- Burke; Wallace R.
- Gitlin; Suzanne N.
Agents
- Merchant, Gould, Smith, Edell,Welter & Schmidt

US Classifications
- D15 - Machines not elsewhere specified
Field of Search
- US
- D15 10
- 055 426
- 055 38
- 055 47
- 055 57
- 055 59
- 210 512
- 210 56
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a bulk material handling apparatus, substantially as shown.

US Referenced Citations (7)

Number	Name	Date	Kind
2230425	Finnegan	Feb 1941
2557344	Erickson	Jun 1951
2946626	Atkinson	Jul 1960
3583910	Stoddard	Jun 1971
3697005	Lundin et al.	Oct 1972
3790986	Burger	Feb 1974
3885376	Johnson	May 1975

Foreign Referenced Citations (1)

Number	Date	Country
7552 OF	Jan 1910	GBX