Underground crane

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Information

Patent Grant
D255890

References
Source

Patent Number
D255,890
Date Filed
Thursday, January 5, 1978
47 years ago
Date Issued
Tuesday, July 15, 1980
44 years ago

Inventors
- Ted W. Wilkes Jr.
- Darel L. Wentworth
Original Assignees
- Timberline LLC
Examiners
- Gandy; James M.
Agents
- Sheridan, Ross, Fields & McIntosh

US Classifications
- D12 - Transportation
Field of Search
- US
- D12 57
- 212 8 R
- 212 35
- 212 38
- 212 46 R
- 212 55
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for the underground crane, as shown and described.

US Referenced Citations (3)

Number	Name	Date	Kind
D183367	Park	Aug 1958
3045836	Evans	Jul 1962
3326390	Hackenberger	Jun 1967