Patent US3098292A successfully refreshed from Google Patents.
US3098292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming generally cylindrical parts from thick metal stock
Assignee: NL Industries Inc
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Filing: 1959-09-02
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Granted: 1963-07-23
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Expires: 1979-09-02
Abstract
No abstract record available.
Inventors
- 👤 Bunk Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:30
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T83/00; Y10T83/929; Y10T83/9411; Y10T83/9423
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A METHOD OF PRODUCING A PLURALITY OF GENERALLY CYLINDRICAL ARTICLES FROM DEFORMABLE SHEET STOCK, SAID ARTICLES BEING OF A UNIFORM, PREDETERMINED DIAMETER THROUGHOUT THEIR LENGTHS, SAID METHOF OF COMPRISING: SUPPORTING THE SHEET STOCK PARALLEL TO A PLANAR DIE FACE, SEVERING A FIRST CYLINDRICAL PART HAVING A DIAMETER GREATER THAN THE PREDETERMINED DIAMETER FROM SAID SHEET STOCK BY MOVING A CIRCULAR CUTTING EDGE HAVING A DIAMETER GREATER THAN SAID PREDETERMINED DIAMETER THROUGH SAID SHEET STOCK AND TOWARD THE DIE FACE, SIMULTANEOUSLY REDUCING THE DIAMETER OF A FIRST PORTION OF SAID PART REMOTE FROM SAID SHEET STOCK AND SAID CUTTING EDGE OF SAID PREDETERMINED DIAMETER BY FORCING SAID FIRST PORTION THROUGH A FLARED OPENING AT THE DIE FACE AND DIRECTLY INTO A CYLINDRICAL REDTRICTION HAVING A DIAMETER SUBSTANTIALLY EQUAL TO
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |