US4819861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper container for liquid
Assignee: Nippon Paper Industries Co Ltd
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Filing: 1987-02-02
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Granted: 1989-04-11
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Expires: 2007-02-02
Abstract
Abstract A paper container for containing liquid such as milk and juice is disclosed. The container is formed of a thick paper provided thereon with vertical and horizontal folding lines intersecting each other at right angles. The intersecting portions of the folding lines are such formed as to be different in configurations for a predetermined length. In this way, splits and pin holes can be prevented from occurring when the thick paper is folded along the grooves to build up a container.
Inventors
- 👤 Kiichiro Nagata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:46
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/4279; B65D5/02; B65D5/06; B65D5/067; Y; Y10; Y10S; Y10S229/00; Y10S229/92; Y10S229/93; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/24; Y10T428/24479; Y10T428/24612
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A paper container for liquid comprising a plurality of vertical folding line grooves and a plurality of horizontal folding line grooves intersecting said vertical line grooves at right angles, wherein at least one of said vertical and horizontal folding line grooves is formed different in configuration in its width for a predetermined length at the intersecting portion, said one of the vertical and horizontal folding line grooves formed at the intersecting portion is formed thinner than the other.
Claim 2
Dependent Claim
78 words
A paper container for liquid comprising a plurality of vertical folding line grooves and a plurality of horizontal folding line grooves intersecting said vertical line grooves at right angles, wherein at least one of said vertical and horizontal folding line grooves is formed different in configuration in its width for a predetermined length at the intersecting portion, said one of the vertical and horizontal folding line grooves formed at the intersecting portion is formed thinner than the other.
Claim 3
Dependent Claim
30 words
A paper container for liquid as claimed in claim 1, wherein said wide width portion at the intersecting portion is provided to both said vertical and horizontal folding line grooves.
Claim 4
Dependent Claim
31 words
A paper container for liquid as claimed in claim 1, wherin the width of said folding line groove is within 1 to 6 times of the thickness of a thick paper.
Claim 5
Dependent Claim
24 words
A paper container for liquid as claimed in claim 1 wherein the contour of said wide width portion at the intersecting portion is linear.
Claim 6
Dependent Claim
24 words
A paper container for liquid as claimed in claim 1, wherein the contour of said wide width portion at the intersecting portion is curved.
Claim 7
Dependent Claim
34 words
A paper container for liquid as claimed in claim 2, wherein said wide width portion at the intersecting portion is formed in a circular shape on both the vertical and horizontal folding line grooves.
Claim 8
Dependent Claim
34 words
A paper container for liquid as claimed in claim 2, wherein said wide width portion at the intersecting portion is formed in an oval shape on both the vertical and horizontal folding line grooves.
Claim 9
Dependent Claim
34 words
A paper container for liquid as claimed in claim 2, wherein said wide width portion at the intersecting portion is formed in a diamond shape on both the vertical and horizontal folding line grooves.
Claim 10
Dependent Claim
26 words
A paper container for liquid as claimed in claim 1, wherein at least one of the vertical and horizontal folding line grooves is not partly provided.
Claim 11
Dependent Claim
96 words
A paper container for liquid comprising a plurality of vertical folding line grooves and a plurality of horizontal folding line grooves intersecting said vertical line grooves at right angles, wherein at least one of said vertical and horizontal folding line grooves is formed different in configuration in its width for a predetermined length at the intersecting portion, said one of the vertical and horiziontal folding line grooves formed at the intersecting portion is formed thinner than the other and wherein said thin portion of the folding line grooves is 10/10 to 5/10 of a thick paper.
Claim 12
Dependent Claim
96 words
A paper container for liquid comprising a plurality of vertical folding line grooves and a plurality of horizontal folding line grooves intersecting said vertical line grooves at right angles, wherein at least one of said vertical and horizontal folding line grooves is formed different in configuration in its width for a predetermined length at the intersecting portion, said one of the vertical and horiziontal folding line grooves formed at the intersecting portion is formed thinner than the other and wherein said thin portion of the folding line grooves is 10/10 to 5/10 of a thick paper.
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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |