Conditionally self-copying stationery

Details Conditionally self-copying stationery Conditionally self-copying stationery

1984-08-28

1986-06-10

Bell, Paul A.

Textiles: manufacturing

282 27R, 427153, B41L 116, B41L 120, B41M 500

Patent

active

045939357

ABSTRACT:
Conditionally self-copying stationery is provided wherein a carbon copy of handwritten material can be made dependently upon the attitude of insertion of a copy sheet. The copy sheet has a carbon back coating on one face thereof and each of the writing sheets in a pad has a carbon front coating on the upper surface thereof. Dependently upon whether the copy sheet is inserted such that its carbon back coating makes contact with a carbon front coating or not, so a carbon copy is selectably made or not made. The copy sheet is the conventional writing guide found in writing pads, and is printed on both sides with writing guidelines.

REFERENCES:
patent: 3295867 (1967-01-01), Stein
patent: 3893714 (1975-07-01), Paulson et al.
patent: 3911195 (1975-10-01), Schmidt et al.
patent: 4092456 (1978-04-01), Newman et al.
patent: 4098947 (1978-07-01), Schmidt et al.
patent: 4143891 (1979-03-01), Neubauer
patent: 4165101 (1979-08-01), Sternberg et al.
patent: 4172605 (1979-10-01), Welsch et al.

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