Portfolio

Details Portfolio Portfolio

Filed on

1989-05-16

Date issued

1992-01-07

Examiner

Burke, Wallace R.

Patent Class

Office supplies; artists and teachers materials

SubClass

Book, album or cover

Type

Patent

Status

active

Patent number

D03229874

Description

REFERENCES:
patent: D166852 (1952-05-01), Hiltenbrand
patent: D257264 (1980-10-01), Savatteri
patent: D273537 (1984-04-01), Gerch
patent: D278859 (1985-05-01), Katz et al.
patent: D290908 (1987-07-01), Thomas
patent: 4126168 (1978-11-01), Ganz et al.
patent: 4720012 (1988-01-01), Dufour

Affiliated with

Also associated with

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