Ink ribbon cassette for electronic typewriter

- Canon
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front elevational view of an ink ribbon cassette for electronic typewriter showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a perspective view taken from the top, rear and left side thereof .

Referenced Cited
U.S. Patent Documents
D244965 July 5, 1977 Trezise et al.
D261277 October 13, 1981 Hashimoto et al.
D272544 February 7, 1984 Daughters
D275404 September 4, 1984 Hashimoto
D281330 November 12, 1985 Kando
D286058 October 7, 1986 Yamamoto
D290715 July 7, 1987 Omino et al.
3918569 November 1975 Parker
4400103 August 23, 1983 Daughters
4496255 January 29, 1985 Meintrup et al.
4511271 April 16, 1985 Oberto
Patent History
Patent number: D302828
Type: Grant
Filed: Apr 28, 1987
Date of Patent: Aug 15, 1989
Assignee: Canon Kabushiki Kaisha (Tokyo)
Inventors: Aiko Endo (Tokyo), Yasuo Ohba (Yokohama)
Primary Examiner: James R. Largen
Law Firm: Fitzpatrick, Cella, Harper & Scinto
Application Number: 7/43,295
Classifications
Current U.S. Class: Element Or Attachment (D18/12)