US3141598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy opening container
Assignee: Waldorf Paper Products Co
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Filing: 1963-01-03
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Granted: 1964-07-21
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Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 Walter H Rasmussen
- 👤 Ronald V Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:45
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/5405; B65D5/541
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AN EASY OPENING CONTAINER INCLUDING, A RECTANGULAR TUBULAR CONTAINER INCLUDING PARALLEL RELATIVELY LONGER SIDE WALLS AND PARALLEL RELATIVELY SHORTER END WALLS, CLOSING FLAPS ON SAID SIDE AND END WALLS, THE CLOSING FLAPS OF THE SIDE WALLS EXTENDING SUBSTANTIALLY INTO END ABUTTING RELATION WHEN FOLDED INTO A COMMON PLANE, A REMOVABLE TEAR STRIP EXTENDING ACROSS EACH SIDE WALL CLOSING FLAP PARALLEL TO THE LINES OF FOLD CONNECTING THESE SIDE WALL CLOSING FLAPS TO SAID SIDE WALLS, EACH SAID TEAR STRIP BEING FORMED BY SPACED SIDE BY SIDE WEAKENED LINES OF SEPARATION, AND WEAKENED LINES OF SEPARATION EXTENDING INWARDLY FROM THE FREE ENDS OF THE SIDE WALL CLOSING FLAPS TO THE TEAR STRIP.
Claim 2
Dependent Claim
111 words
AN EASY OPENING CONTAINER INCLUDING, A RECTANGULAR TUBULAR CONTAINER INCLUDING PARALLEL RELATIVELY LONGER SIDE WALLS AND PARALLEL RELATIVELY SHORTER END WALLS, CLOSING FLAPS ON SAID SIDE AND END WALLS, THE CLOSING FLAPS OF THE SIDE WALLS EXTENDING SUBSTANTIALLY INTO END ABUTTING RELATION WHEN FOLDED INTO A COMMON PLANE, A REMOVABLE TEAR STRIP EXTENDING ACROSS EACH SIDE WALL CLOSING FLAP PARALLEL TO THE LINES OF FOLD CONNECTING THESE SIDE WALL CLOSING FLAPS TO SAID SIDE WALLS, EACH SAID TEAR STRIP BEING FORMED BY SPACED SIDE BY SIDE WEAKENED LINES OF SEPARATION, AND WEAKENED LINES OF SEPARATION EXTENDING INWARDLY FROM THE FREE ENDS OF THE SIDE WALL CLOSING FLAPS TO THE TEAR STRIP.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |