Drawing pen

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Information

Patent Grant
D257857

References
Source

Patent Number
D257,857
Date Filed
Wednesday, October 11, 1978
46 years ago
Date Issued
Tuesday, January 13, 1981
43 years ago

Inventors
- John P. Leuenberger
- Wolfgang Witz
Original Assignees
- KOH-I-NOOR RAPIDOGRAPH, INC
Examiners
- Stearman; Joel
- Word; George P.
Agents
- Semmes; David H.

US Classifications
- D19 - Office supplies
Field of Search
- US
- D19 35
- D19 36
- D19 41-51
- D19 54-57
- 401 259
- 401 260
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a drawing pen, as shown and described.

US Referenced Citations (3)

Number	Name	Date	Kind
D216282	Danjczek	Dec 1969
D244529	Gomez	May 1977
D249887	Anderka	Oct 1978

Non-Patent Literature Citations (1)

Entry
Art Brown Corp. .COPYRGT.1973, p. 130.