Developing unit for copiers

Title:

Developing unit for copiers

United States Patent D313615

US Patent References:
/D238658.html
Stone - February, 1976 - D238658

Toner powder supply container
Alseth et al. - September, 1977 - D245761

Process kit for electrophotographic apparatus
Masaki - December, 1984 - D276916

Powder cartridge
Sabin - January, 1985 - D277289

Office copier processing cartridge
Clowe et al. - October, 1986 - D286297

Inventors:

Tokuda, Hiroyuki (Yokohama, JP)

Application Number:

D/296760

Publication Date:

01/08/1991

Filing Date:

01/13/1989

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Assignee:

Canon Kabushiki Kaisha (Tokyo, JP)

Primary Class:

D18/36

Other Classes:

D18/43

Field of Search:

D18/40, D18/43, 355/200, 355/245, 355/260

US Patent References:

D287023	Developing unit for an electrographic copier	December, 1986	Masaki	D18/36
D298259	Drum kit for electrophotographic copier	October, 1988	Masaki	D18/43
D298333	Process kit for electrophotographic copier	November, 1988	Masaki et al.	D18/43
D298334	Developing device for electrophotographic copier	November, 1988	Masaki et al.	D18/43
D298335	Drum kit for electrophotographic copier	November, 1988	Masaki et al.	D18/40
D298336	Developing device for electrophotographic copier	November, 1988	Masaki	D18/43
D303541	Developing device for electrophotographic copier	September, 1989	Aoyama	D18/36
D303542	Developing device for electrophotographic copier	September, 1989	Tashiro	D18/36
D303543	Developing device for copying machine	September, 1989	Seki	D18/36
4849791	Waste toner collecting system	July, 1989	Hagihara et al.	355/298

Foreign References:

Primary Examiner:

Holtje, Nelson C.

Assistant Examiner:

Veynar, Caron D.

Attorney, Agent or Firm:

Fitzpatrick, Cella, Harper & Scinto

Claims:

1. The ornamental design for developing unit for copiers, as shown anddescribed.

Description:

FIG. 1 is a front elevational view of developing unit for copiers showing my 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 thereof.