Patent US3301458A successfully refreshed from Google Patents.
US3301458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opening device for packages
Assignee: Tetra Pak AB
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Filing: 1965-03-18
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Granted: 1967-01-31
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Expires: 1985-03-18
Abstract
No abstract record available.
Inventors
- 👤 Gad A Rausing
- 👤 Hans A Rausing
- 👤 Stark Sven Olof Soren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:30
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/70; B65D5/706; B65D5/02; B65D5/06; B65D5/064; B65D5/065; B65D5/708
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN OPENING DEVICE FOR A PACKAGE OF THE KIND WHICH CONSISTS OF A TUBE WHICH HAS BEEN CLOSED AT ITS END BY TRANSVERSE SEALS AND GIVEN A PARALLELEPIPEDIC FORM, A DOUBLE WALLED TRIANGULAR FLAP EXTENDING FROM THE EDGE OF SAID PACKAGE FORMED BY THE JUNCTURE OF A SIDE WALL WITH AN END WALL THEREOF AND COMMUNICATING WITH THE INTERIOR THEREOF, AN OPENING IN THE INNER WALL OF SAID FLAP WHICH IS ADJACENT TO SAID SIDE WALL WHEN SAID FLAP IS FOLDED DOWNWARDLY AND A STRIP FIXED TO SAID INNER WALL OF SAID
Claim 2
Dependent Claim
92 words
AN OPENING DEVICE FOR A PACKAGE OF THE KIND WHICH CONSISTS OF A TUBE WHICH HAS BEEN CLOSED AT ITS END BY TRANSVERSE SEALS AND GIVEN A PARALLELEPIPEDIC FORM, A DOUBLE WALLED TRIANGULAR FLAP EXTENDING FROM THE EDGE OF SAID PACKAGE FORMED BY THE JUNCTURE OF A SIDE WALL WITH AN END WALL THEREOF AND COMMUNICATING WITH THE INTERIOR THEREOF, AN OPENING IN THE INNER WALL OF SAID FLAP WHICH IS ADJACENT TO SAID SIDE WALL WHEN SAID FLAP IS FOLDED DOWNWARDLY AND A STRIP FIXED TO SAID INNER WALL OF SAID
References Cited (Backward Citations)
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |