Patent US3977591A successfully refreshed from Google Patents.
US3977591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover strip for the pouring opening in a packing container
Assignee: Ziristor AB
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Filing: 1975-06-16
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Granted: 1976-08-31
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Expires: 1995-06-16
Abstract
Abstract The invention concerns a cover strip for the pouring opening of a packing container. The strip is provided with a weakening line for ease in tearing off the cover strip. The bottom part of the cover strip is attached to a wall of the container so that it remains on the container after the cover strip per se is torn off.
Inventors
- 👤 Kjell Martensson
- 👤 Stig Lothman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/70; B65D5/708
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
163 words
In a packing container having a pouring opening in the top thereof, the improvement comprising a cover strip for the pouring opening, said cover strip comprising an inner portion releasably secured over the pouring opening, an intermediate portion extending outwardly from the pouring opening and an outer portion folded under said intermediate portion and extending substantially back to the pouring opening, at least part of the outer portion being secured to the top of the packing container, said intermediate portion being provided with a transverse tearing indication, whereby when the inner portion of the cover strip is released from the top of the packing container to uncover the pouring opening for access to the contents thereof, at least said inner portion is separated at the tearing indication from the remainder of the cover strip including the outer folded portion which remains secured to the top of the packing container and provides a sanitary path for the contents when poured from the packing container.
Claim 2
Dependent Claim
163 words
In a packing container having a pouring opening in the top thereof, the improvement comprising a cover strip for the pouring opening, said cover strip comprising an inner portion releasably secured over the pouring opening, an intermediate portion extending outwardly from the pouring opening and an outer portion folded under said intermediate portion and extending substantially back to the pouring opening, at least part of the outer portion being secured to the top of the packing container, said intermediate portion being provided with a transverse tearing indication, whereby when the inner portion of the cover strip is released from the top of the packing container to uncover the pouring opening for access to the contents thereof, at least said inner portion is separated at the tearing indication from the remainder of the cover strip including the outer folded portion which remains secured to the top of the packing container and provides a sanitary path for the contents when poured from the packing container.
Claim 3
Dependent Claim
52 words
In a packing container as claimed in claim 1 the improvement wherein the intermediate portion of the cover strip extends outwardly beyond the outer edge of the top of the packing container and wherein the transverse tearing indication is located at the outer end of the intermediate portion of the cover strip.
Claim 4
Dependent Claim
110 words
In a packing container as claimed in claim 1 the improvement wherein the intermediate portion of the cover strip extends substantially to the edge of the top of the packing container and wherein the transverse tearing indication of the intermediate portion is located at the inner end thereof and adjacent the pouring opening whereby when the inner portion is removed from the pouring opening, said intermediate portion will be folded outwardly beyond the edge of the container as a continuation of said outer portion to form the path for the contents of the packing container, and said inner portion will be separated from said intermediate portion at the tearing indication.
Claim 5
Dependent Claim
75 words
In a packing container as claimed in claim 1 in which the packing container is provided with an inner lining of a plastic material inside the top of the container, the improvement wherein said inner portion of the cover strip is depressed into the pouring opening and is secured to the inner lining so that the inner lining will be ruptured when the inner portion of the cover strip is removed from the pouring opening.
Claim 6
Dependent Claim
46 words
In a packing container as claimed in claim 4 the improvement wherein the depressed inner portion of the cover strip is releasably engageable with the edge of the pouring opening to permit said inner portion to be reinserted for a substantial reclosure of the packing container.
Claim 7
Dependent Claim
39 words
In a packing container as claimed in claim 1 wherein the inner free end of the inner portion of the cover strip is provided with a grip portion to facilitate removal of said cover strip from the pouring opening.
Claim 8
Dependent Claim
54 words
In a packing container as claimed in claim 1 the improvement wherein the intermediate portion of the cover strip extends to about 1-4 mm. inside the edge of the top of the packing container while the distance between the tearing indication and the outer end of the intermediate portion is from about 2-8 mm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |