Door knocker

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Information

Patent Grant
D256093

References
Source

Patent Number
D256,093
Date Filed
Monday, June 27, 1977
47 years ago
Date Issued
Tuesday, July 29, 1980
44 years ago

Inventors
- Sam Kupperman
- Dennis Kupperman
Original Assignees
- RB Toy Development Co.
Examiners
- Burke; Wallace R.
- Bullock; B. J.

US Classifications
- D08 - Tools and hardware
Field of Search
- US
- D08 401
- 116 148
- 116 DIG 12
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a door knocker, as shown.

US Referenced Citations (3)

Number	Name	Date	Kind
D160671	Stolper	Oct 1950
D214774	Kunkel	Jul 1969
2747538	Morse et al.	May 1956