US3272381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can end for easy opening beverage cans
Assignee: Continental Can Co Inc
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Filing: 1964-03-25
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Granted: 1966-09-13
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Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 John S Bozek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/34; B65D17/36; B65D17/38; B65D17/401; B65D17/4012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A CAN END OF THE EASY OPENING TYPE PARTICULARLY ADAPTED FOR THE DISPENSING OF A PRODUCT WHICH MAY BE UNDER GASEOUS PRESSURE, SAID CAN END INCLUDING AN END PANEL HAVING A PORTION DEFINED BY A WEAKENING LINE AND BEING REMOVABLE TO DEFINE A DISPENSING OPENING, SAID REMOVABLE PORTION HAVING A STARTING END DEFINED BY A STARTING WEAKENING LINE PORTION ALONG WHICH SAID END PANEL IS INITIALLY RUPTURED IN THE REMOVAL OF SAID REMOVABLE PORTION, SAID WEAKENING LINE INCLUDING OTHER PORTIONS EXTENDING FROM SAID STARTING WEAKENING LINE PORTION AND INCLUDING PARTS OF MAXIMUM RESISTANCE WHEREBY WHEN SAID END PANEL IS INITIALLY RUPTURED AND UNCONTROLLED CONTINUED RUPTURE OF SAID END PANEL ALONG SAID WEAKENING LINE DUE TO GASEOUS PRESSURE ON SAID REMOVABLE PORTION OCCURS SAID PARTS OF MAXIMUM RESISTANCE WILL RESIST AND STOP THE UNCONTROLLED RUPTURE.
Claim 2
Dependent Claim
134 words
A CAN END OF THE EASY OPENING TYPE PARTICULARLY ADAPTED FOR THE DISPENSING OF A PRODUCT WHICH MAY BE UNDER GASEOUS PRESSURE, SAID CAN END INCLUDING AN END PANEL HAVING A PORTION DEFINED BY A WEAKENING LINE AND BEING REMOVABLE TO DEFINE A DISPENSING OPENING, SAID REMOVABLE PORTION HAVING A STARTING END DEFINED BY A STARTING WEAKENING LINE PORTION ALONG WHICH SAID END PANEL IS INITIALLY RUPTURED IN THE REMOVAL OF SAID REMOVABLE PORTION, SAID WEAKENING LINE INCLUDING OTHER PORTIONS EXTENDING FROM SAID STARTING WEAKENING LINE PORTION AND INCLUDING PARTS OF MAXIMUM RESISTANCE WHEREBY WHEN SAID END PANEL IS INITIALLY RUPTURED AND UNCONTROLLED CONTINUED RUPTURE OF SAID END PANEL ALONG SAID WEAKENING LINE DUE TO GASEOUS PRESSURE ON SAID REMOVABLE PORTION OCCURS SAID PARTS OF MAXIMUM RESISTANCE WILL RESIST AND STOP THE UNCONTROLLED RUPTURE.
References Cited (Backward Citations)
US3005573A
Cited
US3034680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |