US3229847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy-open can end closure
Assignee: Reynolds Metals Co
•
Filing: 1963-06-07
•
Granted: 1966-01-18
•
Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:30
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D2205/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AN EASY-OPEN CONTAINER END CLOSURE ADAPTED TO BE OPENED BY A PUNCH-TYPE OPENER, SAID CLOSURE HAVING A RADIALLY INWARDLY CONVERGING V-SCORE TERMINATING AT ITS VERTEX IN A DEPRESSED PORTION OF SAID CLOSURE, AND A GENERALLY U-SHAPED PROTUBERANCE FORMED IN SAID CLOSURE AND PARTIALLY SURROUNDING SAID DEPRESSED PORTION WITH THE OPEN END OF SAID PROTURBERANCE FACING RADIALLY OUTWARDLY.
Claim 2
Dependent Claim
57 words
AN EASY-OPEN CONTAINER END CLOSURE ADAPTED TO BE OPENED BY A PUNCH-TYPE OPENER, SAID CLOSURE HAVING A RADIALLY INWARDLY CONVERGING V-SCORE TERMINATING AT ITS VERTEX IN A DEPRESSED PORTION OF SAID CLOSURE, AND A GENERALLY U-SHAPED PROTUBERANCE FORMED IN SAID CLOSURE AND PARTIALLY SURROUNDING SAID DEPRESSED PORTION WITH THE OPEN END OF SAID PROTURBERANCE FACING RADIALLY OUTWARDLY.
References Cited (Backward Citations)
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US1743283A
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US1959260A
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US2176898A
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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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |