US3304185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure carton
Assignee: General Mills Inc
•
Filing: 1952-06-20
•
Granted: 1967-02-14
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Expires: 1972-06-20
Abstract
No abstract record available.
Inventors
- 👤 Maurice W Fortney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:29
CPC Classifications
B; B65; B65D; B65D3/00; B65D3/22; B65D3/26; B65D3/261; B65D3/266; Y; Y10; Y10S; Y10S206/00; Y10S206/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A CYLINDRICAL CONTAINER, COMPRISING A CYLINDRICAL WALL, END CLOSURES FOR SAID CONTAINER MOUNTED ONE ON EACH END OF SAID WALL, SAID END CLOSURES BEING CLINCHED OVER SAID WALL, SAID WALL COMPRISING AN OUTER HELICALLY WOUND LAYER AND AN INNER HELICALLY WOUND LAYER, SAID LAYERS BEING ADHESIVELY SECURED TOGETHER, TWO SPACED HELICAL LINES OF WEAKNESS ON SAID OUTER LAYER EXTENDING SUBSTANTIALLY 360* AROUND SAID CYLINDRICAL WALL FROM A POINT IN SAID OUTER LAYER ADJAENT AND SPACED FROM ONE OF THE CLOSURES TO A POINT ADJACENT AND SPACED FROM THE OTHER CLOSURE, THE HELICAL LINE JUNCTURE OF SAID INNER LAYER EXTENDING FROM A POINT IN SAID INNER WALL ADJACENT ONE CLOSURE TO A POINT ADJACENT THE OTHER CLOSURE LYING BETWEEN THE SAID PARALLEL LINES OF WEAKNESS OF SAID OUTER LAYER, AND SAID LAYERS BEING IN NON-ADHERENT CONTACT BETWEEN SAID LINES.
Claim 2
Dependent Claim
138 words
A CYLINDRICAL CONTAINER, COMPRISING A CYLINDRICAL WALL, END CLOSURES FOR SAID CONTAINER MOUNTED ONE ON EACH END OF SAID WALL, SAID END CLOSURES BEING CLINCHED OVER SAID WALL, SAID WALL COMPRISING AN OUTER HELICALLY WOUND LAYER AND AN INNER HELICALLY WOUND LAYER, SAID LAYERS BEING ADHESIVELY SECURED TOGETHER, TWO SPACED HELICAL LINES OF WEAKNESS ON SAID OUTER LAYER EXTENDING SUBSTANTIALLY 360* AROUND SAID CYLINDRICAL WALL FROM A POINT IN SAID OUTER LAYER ADJAENT AND SPACED FROM ONE OF THE CLOSURES TO A POINT ADJACENT AND SPACED FROM THE OTHER CLOSURE, THE HELICAL LINE JUNCTURE OF SAID INNER LAYER EXTENDING FROM A POINT IN SAID INNER WALL ADJACENT ONE CLOSURE TO A POINT ADJACENT THE OTHER CLOSURE LYING BETWEEN THE SAID PARALLEL LINES OF WEAKNESS OF SAID OUTER LAYER, AND SAID LAYERS BEING IN NON-ADHERENT CONTACT BETWEEN SAID LINES.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |