US4189060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retention means for container closure assembly
Assignee: 3M Co
•
Filing: 1978-10-05
•
Granted: 1980-02-19
•
Expires: 1998-10-05
Abstract
Abstract An improvement for restricting the separation of an easy-open, closure system from a container, the improvement being a nonmetallic film (preferably having yarns therein) which anchors the closure system to the container end.
Inventors
- 👤 Gladstone Trotman, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:29
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/50; B65D17/501; B65D17/505; B65D2517/00; B65D2517/0001; B65D2517/001; B65D2517/0013; B65D2517/0026; B65D2517/0029; B65D2517/0058; B65D2517/0059; B65D2517/0061; B65D2517/0091; B65D2517/0095; B65D2517/50; B65D2517/5002; B65D2517/5024; B65D2517/5027; B65D2517/5037; B65D2517/5072; B65D2517/5083; B65D2517/5086
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
An end portion for a container, said end portion being of the type having a closure system thereon comprising an exterior tape removably secured to the top of said end portion over a pour hole in said end portion, wherein the improvement comprises a non-metallic flexible film having a plurality of flexible yarns thereon, said film having a first end portion and a second end portion, wherein said first end portion is bonded to the underside of said container end portion and said second end portion is bonded to the underside of said tape in the area of said pour hole.
Claim 2
Dependent Claim
101 words
An end portion for a container, said end portion being of the type having a closure system thereon comprising an exterior tape removably secured to the top of said end portion over a pour hole in said end portion, wherein the improvement comprises a non-metallic flexible film having a plurality of flexible yarns thereon, said film having a first end portion and a second end portion, wherein said first end portion is bonded to the underside of said container end portion and said second end portion is bonded to the underside of said tape in the area of said pour hole.
Claim 3
Dependent Claim
22 words
An improvement according to claim 1 wherein the total Denier of said yarns falls in the range of about 250 to 8,000.
Claim 4
Dependent Claim
25 words
An improvement according to claim 1 wherein said closure system further comprises an interior sheet material secured to the underside of said container end portion.
Claim 5
Dependent Claim
23 words
An improvement according to claim 3 wherein the total Denier of said yarns falls in the range of about 250 to about 8,000.
Claim 6
Dependent Claim
109 words
In a hand operable easy opening closure system of the type wherein a flexible exterior tape and interior sheet material are employed to removably seal a preformed opening in an end portion of a container, the improvement comprising a non-metallic flexible film having a first end portion and a second end portion, said film having a plurality of non-metallic flexible yarns thereon, the total Denier of said yarns falling in the range of about 1000 to about 8,000, said first end portion being bonded to the underside of said container end portion and said second end portion is bonded to said exterior tape and to said interior sheet material.
Claim 7
Dependent Claim
109 words
In a hand operable easy opening closure system of the type wherein a flexible exterior tape and interior sheet material are employed to removably seal a preformed opening in an end portion of a container, the improvement comprising a non-metallic flexible film having a first end portion and a second end portion, said film having a plurality of non-metallic flexible yarns thereon, the total Denier of said yarns falling in the range of about 1000 to about 8,000, said first end portion being bonded to the underside of said container end portion and said second end portion is bonded to said exterior tape and to said interior sheet material.
Claim 8
Dependent Claim
103 words
An end portion for a container, said end portion being of the type having a closure system thereon comprising an exterior tape removably secured to the top of said end portion over a pour hole, wherein the improvement comprises means for restricting separation of said closure system from said end portion comprising a non-metallic, tough, shear-resistant, flexible film having a first end portion and a second end portion, wherein said first end portion is bonded to the underside of said container end portion and said second end portion is bonded to the underside of said tape in the area of said pour hole.
Claim 9
Dependent Claim
103 words
An end portion for a container, said end portion being of the type having a closure system thereon comprising an exterior tape removably secured to the top of said end portion over a pour hole, wherein the improvement comprises means for restricting separation of said closure system from said end portion comprising a non-metallic, tough, shear-resistant, flexible film having a first end portion and a second end portion, wherein said first end portion is bonded to the underside of said container end portion and said second end portion is bonded to the underside of said tape in the area of said pour hole.
Claim 10
Dependent Claim
25 words
An improvement according to claim 6 wherein said closure system further comprises an interior sheet material secured to the underside of said container end portion.
References Cited (Backward Citations)
US3442416A
Cited
US3990603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |