Patent US3310221A successfully refreshed from Google Patents.
US3310221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container and blank therefor
Assignee: Packaging Corp of America
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Filing: 1965-03-30
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Granted: 1967-03-21
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Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jack E Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:54
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/0281
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A SELF-LOCKING REINFORCED CONTAINER FORMED OF FOLDABLE SHEET MATERIAL, COMPRISING A MULTI-PANEL BOTTOM, AND SIDE AND END WALLS COOPERATING WITH ONE ANOTHER TO DELIMIT SAID BOTTOM, EACH WALL INCLUDING INNER AND OUTER PANELS, SAID OUTER WALL PANELS BEING FOLDABLY INTERCONNECTED AND SAID INNER PANELS BEING INDEPENDENT OF ONE ANOTHER; SAID BOTTOM INCLUDING A PAIR OF LOWER PANELS, EACH LOWER PANEL HAVING ONE EDGE THEREOF FOLDABLY CONNECTED TO THE LOWER EDGE OF A SIDE A WALL OUTER PANEL, THE OPPOSITE EDGE OF EACH LOWER PANEL TERMINATING INTERMEDIATE SAID SIDE WALLS; A PAIR OF INTERMEDIATE PANELS OVERLYING SAID LOWER PANELS; EHC INTERMEDIATE PANEL HAVING A FIRST SECTION OVERLAID BY A SECOND SECTION FOLDABLY CONNECTED THERETO, ONE EDGE OF SAID FIRST SECTION BEING FOLDABLY CONNECTED TO THE LOWER EDGE OF AN END WALL OUTER PANEL, THE OPPOSITE SECOND EDGE OF SAID FIRST SECTION TERMINATING BETWEEN SDAID END WALLS AND BEING FOLDABLY CONNECTED TO THE CORRESPONDING EDGE OF THE OVERLYING SECOND SECTION, THE OPPOSITE EDGE OF SAID SECOND
Claim 2
Dependent Claim
164 words
A SELF-LOCKING REINFORCED CONTAINER FORMED OF FOLDABLE SHEET MATERIAL, COMPRISING A MULTI-PANEL BOTTOM, AND SIDE AND END WALLS COOPERATING WITH ONE ANOTHER TO DELIMIT SAID BOTTOM, EACH WALL INCLUDING INNER AND OUTER PANELS, SAID OUTER WALL PANELS BEING FOLDABLY INTERCONNECTED AND SAID INNER PANELS BEING INDEPENDENT OF ONE ANOTHER; SAID BOTTOM INCLUDING A PAIR OF LOWER PANELS, EACH LOWER PANEL HAVING ONE EDGE THEREOF FOLDABLY CONNECTED TO THE LOWER EDGE OF A SIDE A WALL OUTER PANEL, THE OPPOSITE EDGE OF EACH LOWER PANEL TERMINATING INTERMEDIATE SAID SIDE WALLS; A PAIR OF INTERMEDIATE PANELS OVERLYING SAID LOWER PANELS; EHC INTERMEDIATE PANEL HAVING A FIRST SECTION OVERLAID BY A SECOND SECTION FOLDABLY CONNECTED THERETO, ONE EDGE OF SAID FIRST SECTION BEING FOLDABLY CONNECTED TO THE LOWER EDGE OF AN END WALL OUTER PANEL, THE OPPOSITE SECOND EDGE OF SAID FIRST SECTION TERMINATING BETWEEN SDAID END WALLS AND BEING FOLDABLY CONNECTED TO THE CORRESPONDING EDGE OF THE OVERLYING SECOND SECTION, THE OPPOSITE EDGE OF SAID SECOND
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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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |