Patent DK121012A successfully refreshed from Google Patents.
Patent US3381515A successfully refreshed from Google Patents.
US3381515A
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US
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Cold forming die construction
Assignee: Huck Manufacturing Co
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Filing: 1965-11-01
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Granted: 1968-05-07
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Expires: 1985-11-01
Abstract
No abstract record available.
Inventors
- 👤 John F Orloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:24
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/76; B21J; B21J13/00; B21J13/02; B21J13/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A DIE FOR COLD FORMING A CYLINDRICAL MEMBER HAVING AN ANNULAR GROOVE IN ITS OUTER SURFACE COMPRISING: A DIE HOUSING HAVING A CAVITY OPEN AT ITS UPPER END, DIE HOLDER MEANS LOCATED AT THE UPPER END OF SAID CAVITY AND DEFINING A FRUSTO CONICALLY SHAPED BORE, A MULTIPLE PIECE DIE MEMBER FORMED BY A PLURALITY OF RADIALLY DIVIDED DIE SEGMENTS LOCATED IN SAID FRUSTO CONICALLY SHAPED BORE AND HAVING A COMPOSITE OUTER SURFACE WHICH IS FRUSTO CONICALLY SHAPED TO MATCH SAID FRUSTO CONICALLY SHAPED BORE, MEANS INCLUDING SAID DIE CAVITY OF SAID
References Cited (Backward Citations)
US1766098A
Cited
US2978932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |