US3353738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package having a slit folding line forming a pouring edge
Assignee: Tetra Pak AB
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Filing: 1966-02-08
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Granted: 1967-11-21
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Expires: 1986-02-08
Abstract
No abstract record available.
Inventors
- 👤 Andreasson Jan-Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:11
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/70; B65D5/701; B65D5/56; B65D5/60; B65D5/603; B65D5/606; B65D5/72; B65D5/74; B65D5/741
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PACKAGE HAVING AT LEAST TWO ADJACENT PLANE OUTER WALLS FORMED OF RELATIVELY STIFF MATERIAL AT SUBSTANTIALLY RIGHT ANGLES TO EACH OTHER, A FOLDING LINE BETWEEN THE ADJACENT EDGES OF SAID TWO PLANE WALLS, MEANS DEFINING A POURING OPENING IN ONE OF SAID PLANE WALLS ADJACENT TO BUT SPACED A SUBSTANTIAL DISTANCE FROM SAID FOLDING LINE AND A CUT EXTENDING A SUBSTANTIAL DISTANCE ALONG SAID FOLDING LINE ADJACENT TO SAID MEANS PROVIDING A POURING OPENING, SAID CUT BEING ADAPTED TO PROVID A SHARP EDGE AT SAID FOLDING LINE OVER WHICH LIQUID MAY FLOW FROM SAID OPENING.
Claim 2
Dependent Claim
96 words
A PACKAGE HAVING AT LEAST TWO ADJACENT PLANE OUTER WALLS FORMED OF RELATIVELY STIFF MATERIAL AT SUBSTANTIALLY RIGHT ANGLES TO EACH OTHER, A FOLDING LINE BETWEEN THE ADJACENT EDGES OF SAID TWO PLANE WALLS, MEANS DEFINING A POURING OPENING IN ONE OF SAID PLANE WALLS ADJACENT TO BUT SPACED A SUBSTANTIAL DISTANCE FROM SAID FOLDING LINE AND A CUT EXTENDING A SUBSTANTIAL DISTANCE ALONG SAID FOLDING LINE ADJACENT TO SAID MEANS PROVIDING A POURING OPENING, SAID CUT BEING ADAPTED TO PROVID A SHARP EDGE AT SAID FOLDING LINE OVER WHICH LIQUID MAY FLOW FROM SAID OPENING.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |