US3869078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid proof flat end container with reclosable pour spout
Assignee: ELOTRADE AG A SWISS CORP
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Filing: 1973-12-18
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Granted: 1975-03-04
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Expires: 1993-12-18
Abstract
Abstract A liquid proof coated paperboard container having a flat end closure which can be opened exposing an inherent pouring spout having a unique closing arrangement including a central sonic seal and an edge heat seal with a release means provided between the two seals.
Inventors
- 👤 Eric A Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:16
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/06; B65D5/061; B65D5/062; B65D5/42; B65D5/54; B65D5/5405; B65D5/541
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
184 words
In a paperboard container, the combination, comprising: a. a tubular body having a flat end closure thereon; b. said end closure overlying said body, and including first and second triangular panel members folded flat over the end of said body, and a pair of rectangular shaped panels defined as inner and outer roof panels which are folded over said triangular panel members; c. each of said triangular panel members are flanked by a pair of fold back panels which join them to said inner and outer roof panels; d. first and second pouring panels as part of said fold back panels flanking said first triangular panel; e. first and second closure panels as part of said fold back panels flanking said second triangular panel; f. a central sealing rib including said inner and outer roof panels, said first and second pouring panels and said first and second closure panels; g. an outer sealing rib sealing the edge area of said outer roof panel to said inner roof panel; and h. an opening means positioned between said central sealing rib and said outer sealing rib.
Claim 2
Dependent Claim
184 words
In a paperboard container, the combination, comprising: a. a tubular body having a flat end closure thereon; b. said end closure overlying said body, and including first and second triangular panel members folded flat over the end of said body, and a pair of rectangular shaped panels defined as inner and outer roof panels which are folded over said triangular panel members; c. each of said triangular panel members are flanked by a pair of fold back panels which join them to said inner and outer roof panels; d. first and second pouring panels as part of said fold back panels flanking said first triangular panel; e. first and second closure panels as part of said fold back panels flanking said second triangular panel; f. a central sealing rib including said inner and outer roof panels, said first and second pouring panels and said first and second closure panels; g. an outer sealing rib sealing the edge area of said outer roof panel to said inner roof panel; and h. an opening means positioned between said central sealing rib and said outer sealing rib.
Claim 3
Dependent Claim
27 words
A paperboard container as defined in claim 1 having in combination: a. said opening means having a pair of perforated lines extending across said outer roof panel.
Claim 4
Dependent Claim
33 words
A paperboard container as defined in claim 2 having in combination: a. an opening strip formed between said perforated score lines, and b. a lift tip at one end of said opening strip.
Claim 5
Dependent Claim
25 words
A paperboard container as defined in claim 1 having in combination: a. said opening means having a perforated line extending across said outer roof panel.
Claim 6
Dependent Claim
35 words
A paperboard container as defined in claim 4 having in combination: a. a cut line on said outer roof panel and extending from a side edge of said outer roof panel to said perforated line.
Claim 7
Dependent Claim
47 words
A paperboard container as defined in claim 4 having in combination: a. a second perforated line substantially parallel with said first perforated line; and b. said second perforated line starts at a side edge of said outer roof panel and extends partially across said outer roof panel.
Claim 8
Dependent Claim
65 words
A paperboard container as defined in claim 1 having in combination: a. said opening means having a first perforated line starting at a side edge of said outer roof panel and extend more than half way across said outer roof panel; and b. a second perforated line positioned substantially perpendicular to and starting from said first perforated line and extending across said central sealing rib.
Claim 9
Dependent Claim
42 words
A paperboard container as defined in claim 7 having in combination: a. a third perforated line as part of said opening means and extending parallel to and starting at the same edge of said outer roof panel as said first perforated line.
Claim 10
Dependent Claim
72 words
A paperboard container as defined in claim 8 having in combination: a. a cut line connecting the ends of said first and third perforated lines; b. said second perforated line contacting said first perforated line between its starting end and said cut line; and c. the distance from said starting end of said first perforated line and said second perforated line is greater than the height of said first triangular panel member.
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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |