Patent US4552789A successfully refreshed from Google Patents.
US4552789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backing board insert for food packages
Assignee: Wingate Packaging Inc
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Filing: 1983-02-15
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Granted: 1985-11-12
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Expires: 2003-02-15
Abstract
Abstract An improved L-type backing board insert for supporting food, such as shingled bacon slices, in a film wrapped package is disclosed comprised of a two-ply laminate. An opaque flexible base ply of pigmented plastic material, such as high density polyethylene, is printed on one side and is provided with a mat finish on the other side. A window aperture is formed in the opaque base ply for viewing both sides of a portion of the packaged bacon. A ply of transparent polyolefinic film, such as polypropylene film, is adhered to the base ply, substantially covering the entire printed face and forming a window over the window aperture formed in the base ply. Use of the polypropylene film provides the backing board with a high gloss finish. The improved two-ply backing board reduces the amount of ink necessary for printing on the backing board, captures the printing between the two layers of the laminate, and yields an inexpensive, flexible and high quality backing board.
Inventors
- 👤 Jack W. Winchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:42
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/32; B32B27/06; B32B27/08; B32B27/18; B32B27/20; B32B3/00; B32B3/26; B32B3/266; B32B7/00; B32B7/04; B32B7/12; B65; B65D; B65D75/00; B65D75/52; B65D75/54; B32B2307/00; B32B2307/40; B32B2307/402; B32B2307/4026; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; B32B2323/00; B32B2323/04; B32B2323/046; B32B2439/00; B32B2439/70; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24281; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24884; Y10T428/24942; Y10T428/2495; Y10T428/24967
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
90 words
An insert for packaging of a moisture laden food product within a vacuum sealed film wrapper comprising: a substantially planar base ply of high density polyethylene which is pigmented to render it substantially opaque, the base ply bearing printed matter on a face thereof, a window aperture formed in the base ply, and a ply of transparent polypropylene film adhered to the base ply and substantially covering the printed face of the base ply, the polypropylene ply forming a gas barrier window over said window aperture of the base ply.
Claim 2
Dependent Claim
90 words
An insert for packaging of a moisture laden food product within a vacuum sealed film wrapper comprising: a substantially planar base ply of high density polyethylene which is pigmented to render it substantially opaque, the base ply bearing printed matter on a face thereof, a window aperture formed in the base ply, and a ply of transparent polypropylene film adhered to the base ply and substantially covering the printed face of the base ply, the polypropylene ply forming a gas barrier window over said window aperture of the base ply.
Claim 3
Dependent Claim
58 words
The packaging insert of claim 1 wherein the insert is an L-type insert, the base ply having a major portion which is substantially rectangular in shape, and a flap portion, the flap portion being foldable along a score line extending along an edge of the major portion, the polypropylene ply covering the score line along one side thereof.
Claim 4
Dependent Claim
27 words
The packaging insert of claim 2 wherein the high density polyethylene is about 8 mils in thickness, and the polypropylene ply is about 0.75 mils in thickness.
Claim 5
Dependent Claim
140 words
An improved L-type backing board for packaging of bacon within a vacuum sealed film wrapper, comprising: a flexible and resilient base ply which is pigmented to render it substantially opaque, the base ply being substantially planar and having a main portion and a flap portion, the flap portion being connected to the main portion along a perforated hinge line, the base ply being substantially made of high density polyethylene, printed matter on only one face of the base ply and a mat finish on the other face, a window aperture formed in the main portion of the base ply, and a ply of flexible and resilient transparent polypropylene film adhered to the base ply and covering substantially all the printed face of the base ply, the polypropylene ply further forming a window over said window aperture of the base ply.
Claim 6
Dependent Claim
140 words
An improved L-type backing board for packaging of bacon within a vacuum sealed film wrapper, comprising: a flexible and resilient base ply which is pigmented to render it substantially opaque, the base ply being substantially planar and having a main portion and a flap portion, the flap portion being connected to the main portion along a perforated hinge line, the base ply being substantially made of high density polyethylene, printed matter on only one face of the base ply and a mat finish on the other face, a window aperture formed in the main portion of the base ply, and a ply of flexible and resilient transparent polypropylene film adhered to the base ply and covering substantially all the printed face of the base ply, the polypropylene ply further forming a window over said window aperture of the base ply.
Claim 7
Dependent Claim
47 words
A backing board of claim 4 wherein the polypropylene ply is continuous over the base ply face and covers the perforations of the hinge line on said face such that a smooth burr-free edge is presented when the flap is folded for use of the backing board.
Claim 8
Dependent Claim
31 words
A backing board of claim 5 wherein the high density polyethylene base ply has a thickness of about 8 mils, and the polypropylene ply has a thickness of about 0.75 mils.
Claim 9
Dependent Claim
119 words
An insert for packaging of a moisture laden food product within a vacuum sealed film wrapper comprising: a substantially planar base ply of flexible and soft polymeric sheet material which is pigmented to render it substantially opaque, the base ply bearing printed matter on a face thereof, a window aperture formed in the base ply, a ply of transparent flexible polymeric film adhered to the base ply and substantially covering the printed face of the base ply, the flexible polymeric ply forming a window over said window aperture of the base ply, said base ply comprising high density polyethylene, having a thickness of about 8 mils, and the covering ply comprising polypropylene, having a thickness of about 0.75 mils.
Claim 10
Dependent Claim
119 words
An insert for packaging of a moisture laden food product within a vacuum sealed film wrapper comprising: a substantially planar base ply of flexible and soft polymeric sheet material which is pigmented to render it substantially opaque, the base ply bearing printed matter on a face thereof, a window aperture formed in the base ply, a ply of transparent flexible polymeric film adhered to the base ply and substantially covering the printed face of the base ply, the flexible polymeric ply forming a window over said window aperture of the base ply, said base ply comprising high density polyethylene, having a thickness of about 8 mils, and the covering ply comprising polypropylene, having a thickness of about 0.75 mils.
Claim 11
Dependent Claim
58 words
The packaging insert of claim 7 wherein the insert is an L-type insert, the base ply having a major portion which is substantially rectangular in shape, and a flap portion, the flap portion being foldable along a score line extending along an edge of the major portion, the covering ply overlying the score line along one side thereof.
Claim 12
Independent Claim
130 words
A method for making a L-type insert for the packaging of bacon, comprising the steps of: providing a flexible sheet material of high density polyethylene which is pigmented rendering it substantially opaque for the base of the insert, the base sheet material having a mat finish on one side, forming a score line across the base material to define a main portion of the flap portion for the insert, printing on one side of the base material, forming a window aperture in the base material, bonding a thin, resilient and continuous layer of polypropylene over the entire surface of the printed side of the base material thereby capturing the printing between the base material and the polypropylene layer, and die-cutting the base material bonded polypropylene layer to L-type insert shape.
Claim 13
Independent Claim
130 words
A method for making a L-type insert for the packaging of bacon, comprising the steps of: providing a flexible sheet material of high density polyethylene which is pigmented rendering it substantially opaque for the base of the insert, the base sheet material having a mat finish on one side, forming a score line across the base material to define a main portion of the flap portion for the insert, printing on one side of the base material, forming a window aperture in the base material, bonding a thin, resilient and continuous layer of polypropylene over the entire surface of the printed side of the base material thereby capturing the printing between the base material and the polypropylene layer, and die-cutting the base material bonded polypropylene layer to L-type insert shape.
Claim 14
Dependent Claim
28 words
The method of claim 7 wherein the window aperture is die-cut, and the layer of polypropylene is a polypropylene film which is adhesively bonded to the base material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |