Double helix ladder

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Information

Patent Grant
D386237

References
Source

Patent Number
D386,237
Date Filed
Monday, August 28, 1995
30 years ago
Date Issued
Tuesday, November 11, 1997
28 years ago

Inventors
Original Assignees
- Game Time, Inc.
Examiners
- Shooman; Ted
- Siegel; Mitchell I.
Agents
- Welsh & Katz, Ltd.

US Classifications
- D21 - Games, toys, and sports goods
Field of Search
- US
- D21 240
- D21 245
- D21 246
- 482 35
- 482 36
International Classifications
- 2103
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a double helix ladder, as shown and described.

US Referenced Citations (5)

Number	Name	Date	Kind
506238	Kirker	Oct 1893
1511139	Roziger	Oct 1924
3083015	Barenholtz et al.	Mar 1963
3556522	Gale	Jan 1971
4497484	West	Feb 1985

Non-Patent Literature Citations (3)

Entry
Mexico Forge Co., pp. 14 and 15; tree climber and mini tree climber, Jun. 1984.
Burke playground equipment; p. 10; Spiral ladder, left side of page, Jul. 1995.
GameTime, Inc. Catalog, Cover & pp.5,31 & 52 (1991).