Patent US3245370A successfully refreshed from Google Patents.
US3245370A
Expired / Lapsed
US
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Apparatus for manufacturing end closures
Assignee: Primerica Inc
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Filing: 1963-09-11
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Granted: 1966-04-12
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Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 Bofinger Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:22
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/14; B21D51/00; B21D51/16; B21D51/38; B21D51/383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
APPARATUS FOR MANUFACTURING A MANUALLY OPENABLE END CLOSURE FROM AN IMPERFORATE END CLOSURE BLANK, SAID APPARATUS COMPRISING: A FIRST SUPPORTING DEVICE HAVING MEANS TO RETAIN AN END CLOSURE BLANK; MEANS FOR FORMING A TEAR STRIP IN SAID BLANK WHILE IT IS RETAINED IN SAID FIRST SUPPORTING DEVICE; MEANS FOR SEVERING A TAB FROM SAID RETAINED BLANK AT ONE END OF SAID TEAR STRIP TO THUS PROVIDE A PORTION WHICH CAN BE MANUALLY GRIPPED AND PULLED TO REMOVE SAID TEAR STRIP; A SECOND SUPPORTING DEVICE HAVING MEANS TO RETAIN AN END CLOSURE WITH A TEAR STRIP AND TAB FORMED THEREIN; TRANSFER MEANS FOR CONVEYING SAID END CLOSURE BLANK, WITH A TEAR STRIP AND TAB FORMED THEREIN, FROM SAID FIRST SUPPORTING DEVICE TO SAID SECOND SUPPORTING DEVICE; AND MEANS FOR APPLYING A PATCH ARCOSS THE SEVERED PORTION FROM WHICH SAID TAB WAS FROMED WHILE SAID END CLOSURE IS RETAINED IN SAID SECOND SUPPORTING DEVICE; SAID END CLOSURE THUS AGAIN BEING RENDERED IMPERFORATE.
Claim 2
Dependent Claim
160 words
APPARATUS FOR MANUFACTURING A MANUALLY OPENABLE END CLOSURE FROM AN IMPERFORATE END CLOSURE BLANK, SAID APPARATUS COMPRISING: A FIRST SUPPORTING DEVICE HAVING MEANS TO RETAIN AN END CLOSURE BLANK; MEANS FOR FORMING A TEAR STRIP IN SAID BLANK WHILE IT IS RETAINED IN SAID FIRST SUPPORTING DEVICE; MEANS FOR SEVERING A TAB FROM SAID RETAINED BLANK AT ONE END OF SAID TEAR STRIP TO THUS PROVIDE A PORTION WHICH CAN BE MANUALLY GRIPPED AND PULLED TO REMOVE SAID TEAR STRIP; A SECOND SUPPORTING DEVICE HAVING MEANS TO RETAIN AN END CLOSURE WITH A TEAR STRIP AND TAB FORMED THEREIN; TRANSFER MEANS FOR CONVEYING SAID END CLOSURE BLANK, WITH A TEAR STRIP AND TAB FORMED THEREIN, FROM SAID FIRST SUPPORTING DEVICE TO SAID SECOND SUPPORTING DEVICE; AND MEANS FOR APPLYING A PATCH ARCOSS THE SEVERED PORTION FROM WHICH SAID TAB WAS FROMED WHILE SAID END CLOSURE IS RETAINED IN SAID SECOND SUPPORTING DEVICE; SAID END CLOSURE THUS AGAIN BEING RENDERED IMPERFORATE.
References Cited (Backward Citations)
US3089609A
Cited
US3151766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |