Patent US3566660A successfully refreshed from Google Patents.
US3566660A
Expired / Lapsed
US
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Manufacturing method to produce printing type
Assignee: Unisys Corp
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Filing: 1968-02-28
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Granted: 1971-03-02
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Expires: 1988-02-28
Abstract
Abstract A METHOD OF FORMING PRINTING TYPE FROM A SHEET METAL STRIP WHICH IS PASSED THROUGH A PROGRESSIVE DIE, THE METHOD INCLUDING THE STEPS OF INDEXING THE METAL STRIP THROUGH THE DIE, PRODUCING PRINTING TYPE BLANKS WITH INTEGRALLY CONNECTED HEAD AND HARDENED SHANK PORTIONS BY PUNCHING AND SWAGING OPERATIONS AND LATER SEVERING EACH COMPLETED TYPE BLANK FROM THE STRIP. THE HEAD PORTION OF THE SEVERAL TYPE BLANK THEN IS SUBJECTED TO A CHARACTER FORMING OPERATION WHILE THE SHANK PORTION IS FIRMLY CLAMPED IN A HOLDING FIXTURE.
Inventors
- 👤 Frank Dedek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:45
CPC Classifications
B; B41; B41J; B41J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |