U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Laminate including an adhesive-coated substrate and a removable cover layer having means to form grasp parts upon bending

Patent 4524095 Issued on June 18, 1985. Estimated Expiration Date: Icon_subject October 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3230649

3639500

3690999

3764447

Adhesive picture mount
Patent #: 3987569
Issued on: 10/26/1976
Inventor: Chase

Paint mask Patent #: 4397261
Issued on: 08/09/1983
Inventor: Jones

Inventors

Assignee

Application

No. 06/541143 filed on 10/12/1983

US Classes:

428/43, SHEET, WEB, OR LAYER WEAKENED TO PERMIT SEPARATION THROUGH THICKNESS156/344, Delaminating, per se428/138, Including nonapertured component428/40.1LAYER OR COMPONENT REMOVABLE TO EXPOSE ADHESIVE

Examiners

Primary: Thibodeau, Paul J.

Attorney, Agent or Firm

International Class

G09F 3/02 (20060101)

Foreign Application Priority Data

1983-04-27 DE

Abstract

The present invention is related to a flat laminate part consisting of a substrate layer and a cover layer the adhesive compounding between said substrate layer and said cover layer being such that both layers are securely held together, but a pull-off of said cover layer from said substrate layer is readily possible by hand or mechanically, said flat laminate part having additionally an auxiliary pull-off means to so pull-off said cover layer or parts of said cover layer by hand or mechanically along preset cuts or, respectively, preset breaking lines in said cover layer, wherein said preset cuts or preset breaking lines in said cover layer are positioned and formed such that there is at least one part of the cover layer which can be grasped per each part of said cover layer to be pulled off, said grasp part is, getting exposed by bending the flat laminate part getting exposed by bending the flat laminate part to form a concave curvature of the surface of said cover layer opposite to the surface of said cover layer adhearing to said substrate layer and that the two points of attack of the force producing such bending of the flat laiminate part are distributed over the surface of the flat laminate part such that the hand produced or mechanical pull-off forces acting substantially vertically to the laminate result in a peeling off of said grasp part of said cover layer.

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