Patent US3075356A successfully refreshed from Google Patents.
Patent US3302857A successfully refreshed from Google Patents.
US3302857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy opening container
Assignee: Waldorf Paper Products Co
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Filing: 1965-07-08
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Granted: 1967-02-07
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Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Daryl T Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:35
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/0236; B65D5/42; B65D5/54; B65D5/5405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN EASY OPENING CONTAINER INCLUDING: RECTANGULARLY ARRANGED SIDE AND END WALLS, SIDE AND END WALL CLOSURE FLAPS HINGEDLY CONNECTED TO SAID SIDE AND END WALLS, WEAKENED LINES OF SEPARATION EXTENDING ACROSS SAID SIDE WALL CLOSURE FLAPS PARALLEL TO THE ENDS THEREOF, SAID SIDE WALL CLOSURE FLAPS SUBSTANTIALLY MEETING IN END ABUTTING RELATION IN CLOSED POSITION OF THE CONTAINER, DETACHABLE AREAS IN SAID END WALLS SUBSTANTIALLY ALIGNED WITH THE PORTIONS OF SAID SIDE WALL CLOSURE FLAPS BETWEEN SAID WEAKENED LINES, AND A STRIP OF TAPE ADHERED TO THE PORTIONS OF SAID SIDE WALL CLOSURE FLAPS BETWEEN SAID WEAKENED LINES, THE ENDS OF SAID TAPE BEING ADHERED TO SAID END WALLS ONLY WITHIN SAID DETACHABLE AREAS.
Claim 2
Dependent Claim
114 words
AN EASY OPENING CONTAINER INCLUDING: RECTANGULARLY ARRANGED SIDE AND END WALLS, SIDE AND END WALL CLOSURE FLAPS HINGEDLY CONNECTED TO SAID SIDE AND END WALLS, WEAKENED LINES OF SEPARATION EXTENDING ACROSS SAID SIDE WALL CLOSURE FLAPS PARALLEL TO THE ENDS THEREOF, SAID SIDE WALL CLOSURE FLAPS SUBSTANTIALLY MEETING IN END ABUTTING RELATION IN CLOSED POSITION OF THE CONTAINER, DETACHABLE AREAS IN SAID END WALLS SUBSTANTIALLY ALIGNED WITH THE PORTIONS OF SAID SIDE WALL CLOSURE FLAPS BETWEEN SAID WEAKENED LINES, AND A STRIP OF TAPE ADHERED TO THE PORTIONS OF SAID SIDE WALL CLOSURE FLAPS BETWEEN SAID WEAKENED LINES, THE ENDS OF SAID TAPE BEING ADHERED TO SAID END WALLS ONLY WITHIN SAID DETACHABLE AREAS.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |