Patent US1245985A successfully refreshed from Google Patents.
Patent US3552631A successfully refreshed from Google Patents.
US3552631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging material having a strip on one side and covering tapes on the other side
Assignee: Tetra Pak AB
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Filing: 1969-02-24
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Granted: 1971-01-05
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Expires: 1989-02-24
Abstract
Abstract Packaging material and package made therefrom which has an opening therein covered by a pull tab on one side and a strip of elongated material on the other side sealing the edges of the opening and being sealed to that portion of the pull tab assembly through the opening.
Inventors
- 👤 Alfred Fuchs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:01
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/70; B65D5/708; B65D75/00; B65D75/40; B65D75/44; B65D75/48; B65D75/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
72 words
Packaging material comprising: a supply of web material; a plurality of apertures in said material, a tab of material sealed to one side of said web material over said apertures and a continuous strip of material sealed to the other of said web material and covering said apertures, said continuous strip of material adhering to the edges of said apertures and to the portion of said tab material accessible through said apertures.
Claim 2
Dependent Claim
72 words
Packaging material comprising: a supply of web material; a plurality of apertures in said material, a tab of material sealed to one side of said web material over said apertures and a continuous strip of material sealed to the other of said web material and covering said apertures, said continuous strip of material adhering to the edges of said apertures and to the portion of said tab material accessible through said apertures.
Claim 3
Dependent Claim
23 words
The structure of claim 1 wherein said tab of material and continuous strip of material both have a plastic layer facing one another.
References Cited (Backward Citations)
US2870935A
Cited
US2940884A
Cited
US3101879A
Cited
US3166226A
Cited
US3355059A
Cited
US3339788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |