US4588099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film seal for container
Assignee: Illinois Tool Works Inc
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Filing: 1985-04-25
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Granted: 1986-05-13
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Expires: 2005-04-25
Abstract
Abstract Tamper-resistant innerseals that bond firmly to the lips of lidded or capped plastic containers. The innerseals incorporate a metallic foil having a biaxially oriented polymeric film applied to one surface thereof.
Inventors
- 👤 Donald E. Diez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:29
CPC Classifications
B; B65; B65D; B65D53/00; B65D53/04; B65D51/00; B65D51/18; B65D51/20; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0015; B65D2251/0068; B65D2251/0093
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
43 words
An article suitable for preparing a container innerseal comprising a pulpboard backing, a layer of wax coated over said backing, metallic foil overlying said wax layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 2
Dependent Claim
43 words
An article suitable for preparing a container innerseal comprising a pulpboard backing, a layer of wax coated over said backing, metallic foil overlying said wax layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 3
Dependent Claim
11 words
The article of claim 1 wherein the metallic foil comprises aluminum.
Claim 4
Dependent Claim
17 words
The article of claim 1 wherein the layer of wax coated over said backing comprises microcrystalline wax.
Claim 5
Dependent Claim
23 words
The article of claim 1 wherein the polymeric film is selected from the group consisting of styrene homopolymers, styrene copolymers, polyethylene, and polypropylene.
Claim 6
Dependent Claim
38 words
A container innerseal comprising a pulpboard backing, a layer of wax coated over said backing, metallic foil overlying said wax layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 7
Dependent Claim
38 words
A container innerseal comprising a pulpboard backing, a layer of wax coated over said backing, metallic foil overlying said wax layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 8
Dependent Claim
11 words
The article of claim 5 wherein the metallic foil comprises aluminum.
Claim 9
Dependent Claim
17 words
The article of claim 5 wherein the layer of wax coated over said backing comprises microcrystalline wax.
Claim 10
Dependent Claim
23 words
The article of claim 5 wherein the polymeric film is selected from the group consisting of styrene homopolymers, styrene copolymers, polyethylene, and polypropylene.
Claim 11
Dependent Claim
42 words
An article suitable for preparing a container innerseal comprising a backing, a layer of adhesive coated over said backing, metallic foil overlying said adhesive layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 12
Dependent Claim
42 words
An article suitable for preparing a container innerseal comprising a backing, a layer of adhesive coated over said backing, metallic foil overlying said adhesive layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 13
Dependent Claim
11 words
The article of claim 9 wherein the metallic foil comprises aluminum.
Claim 14
Dependent Claim
23 words
The article of claim 9 wherein the polymeric film is selected from the group consisting of styrene homopolymers, styrene copolymers, polyethylene, and polypropylene.
Claim 15
Dependent Claim
37 words
A container innerseal comprising a backing, a layer of adhesive coated over said backing, metallic foil overlying said adhesive layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 16
Dependent Claim
37 words
A container innerseal comprising a backing, a layer of adhesive coated over said backing, metallic foil overlying said adhesive layer, and a biaxially oriented polymeric film adhered to said metallic foil by means of an adhesive layer.
Claim 17
Dependent Claim
11 words
The article of claim 12 wherein the metallic foil comprises aluminum.
Claim 18
Dependent Claim
23 words
The article of claim 12 wherein the polymeric film is selected from the group consisting of styrene homopolymers, styrene copolymers, polyethylene, and polypropylene.
Claim 19
Dependent Claim
20 words
A container having a lip formed of a polymeric material, said lip having a biaxially oriented polymeric film heat-sealed thereto.
Claim 20
Dependent Claim
20 words
A container having a lip formed of a polymeric material, said lip having a biaxially oriented polymeric film heat-sealed thereto.
Claim 21
Dependent Claim
15 words
The container of claim 15 wherein said lip is formed from a heat-sealable polymeric material.
Claim 22
Dependent Claim
24 words
The container of claim 15 wherein said biaxially oriented film is selected from the group consisting of styrene homopolymers, styrene copolymers, polyethylene, and polypropylene.
Claim 23
Dependent Claim
27 words
The container of claim 12 wherein said lip is formed from a polymer selected from the group consisting of from styrene homopolymers, styrene copolymers, polyethylene, and polypropylene.
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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |