Patent
   D319253
Priority
Nov 02 1989
Filed
Nov 02 1989
Issued
Aug 20 1991
Expiry
Aug 20 2005
Assg.orig
Entity
unknown
1
7
n/a
The ornamental design for a calculator, as shown and described.

FIG. 1 is a top plan view of a calculator showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a rear elevational view thereof.

Peersmann, Richard

Patent Priority Assignee Title
D921312, Sep 13 2018 iRobot Corporation Cleaning pad mounting card for an autonomous floor cleaning robot
Patent Priority Assignee Title
3932895, Sep 10 1974 Information Terminals Corporation Reversible magnetic recording disk unit
4658317, Aug 07 1984 Flexible magnetic disk write protect device
4794470, Jun 25 1986 BOETTCHER VENTURE CAPITAL PARTNERS, L P ,; FBS SMALL BUSINESS INVESTMENT COMPANY, LIMITED PARTNERSHIP; KALIKAS, GREGORY Security system for protecting information
4811152, Sep 02 1985 Kao Corporation Protective structure for jacket for rotatable magnetic recording media
4816954, Aug 07 1987 Blocking switch for computer diskettes
D245125, Jun 01 1976 Flexible magnetic disc cartridge
D283893, Dec 07 1982 Sony Corporation Floppy disc
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 28 1989PEERSMANN, RICHARDPOLLYFLAME INTERNATIONAL B V ASSIGNMENT OF ASSIGNORS INTEREST 0051700800 pdf
Nov 02 1989Pollyflame International B.V.(assignment on the face of the patent)
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule