Peelable on-package coupon and method for making same
US4345393A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Mar 28, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/831
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laminated container structure in which a peelable coupon or the like forms an integral portion of the outer ply of the container wall and is defined by a perforated tear outline. In one embodiment, a release agent is coated on the back of the coupon area to prevent adherence of the coupon to the adhesive joining together the outer and inner plies of the container. In another embodiment, the inner ply is formed of cylinderboard adhesively fastened to the outer ply, the perforate coupon tear outline extending through the outer ply, adhesive and outermost layer of the inner ply so that peeling of the coupon will not remove the inner layers of the inner ply and thus not destroy the integrity of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.