Ball-point pen

Details Ball-point pen Ball-point pen

1980-09-18

1983-03-29

Coughenour, Clyde I.

Coating implements with material supply

Projectable and retractable tool

Projection by movement of implement

401 94, B43K 712

Patent

active

043781713

ABSTRACT:
A ball-point pen, which is retractable to about half its size when not in use, includes a substantially cylindrical housing having a retractable, plastic writing cartridge body therein. A plurality of push-button actuated, spring biased gripping elements engage the plastic body to retain the body in a retracted or extended position.

REFERENCES:
patent: 240712 (1881-04-01), Hoffman
patent: 290684 (1883-12-01), Hoffman
patent: 326737 (1885-09-01), Hoffman
patent: 335908 (1886-02-01), Fischer
patent: 2845898 (1958-08-01), Stanek
patent: 2913750 (1959-11-01), Aversa
patent: 3050896 (1962-08-01), Parker
patent: 3095859 (1963-07-01), Levy
patent: 3709620 (1973-01-01), Miyamoto
patent: 3994605 (1976-11-01), McKnight

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