US3228263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cutting dies
Assignee: PRODUCTION TECHNOLOGIES Inc
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Filing: 1964-05-11
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Granted: 1966-01-11
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Howard L Bien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:44
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/20; B21D37/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF MAKING CUTTING DIES COMPRISING THE STEPS OF CUTTING OUT OF A BLOCK A CENTERPIECE HAVING THE INNER AND OUTER CONTOUR OF AN ARTICLE TO BE PUNCHED OUT OF FLAT MATERIAL, FITTING TOOL STEEL SECTIONS AROUND SAID CENTERPIECE AND REASSEMBLING SAID CENTERPIECE IN SAID BLOCK WITH SAID TOOL STEEL SECTIONS PROJECTING FROM SAID BLOCK AND RETAINED THEREBETWEEN TO FORM A FIRST FEMALE DIE MEMBER, POURING MATERIAL IN ITS LIQUID STATE INTO THE SPACE DEFINED BY THE TOP FACE OF SAID CENTERPIECE AND SAID TOOL STEEL SECTIONS TO FORM A FIRST PUNCH MEMBER OF A CONTOUR COMPLEMENTARY TO SAID CENTERPIECE, SURROUNDING SAID FIRST PUNCH MEMBER BY A FRAME, POURING MATERIAL INTO THE SPACE DEFINED BETWEEN SAID FRAME AND SAID FIRST PUNCH MEMBER, TO PRODUCE A SECOND FEMALE DIE MEMBER, POURING TOOL STEEL IN ITS LIQUID STATE INTO SAID SECOND FEMALE DIE MEMBER TO PRODUCE A SECOND MALE PUNCH MEMBER, REMOVING SAID SECOND MALE PUNCH MEMBER FROM SAID SECOND FEMALE DIE MEMBER.
Claim 2
Independent Claim
162 words
A METHOD OF MAKING CUTTING DIES COMPRISING THE STEPS OF CUTTING OUT OF A BLOCK A CENTERPIECE HAVING THE INNER AND OUTER CONTOUR OF AN ARTICLE TO BE PUNCHED OUT OF FLAT MATERIAL, FITTING TOOL STEEL SECTIONS AROUND SAID CENTERPIECE AND REASSEMBLING SAID CENTERPIECE IN SAID BLOCK WITH SAID TOOL STEEL SECTIONS PROJECTING FROM SAID BLOCK AND RETAINED THEREBETWEEN TO FORM A FIRST FEMALE DIE MEMBER, POURING MATERIAL IN ITS LIQUID STATE INTO THE SPACE DEFINED BY THE TOP FACE OF SAID CENTERPIECE AND SAID TOOL STEEL SECTIONS TO FORM A FIRST PUNCH MEMBER OF A CONTOUR COMPLEMENTARY TO SAID CENTERPIECE, SURROUNDING SAID FIRST PUNCH MEMBER BY A FRAME, POURING MATERIAL INTO THE SPACE DEFINED BETWEEN SAID FRAME AND SAID FIRST PUNCH MEMBER, TO PRODUCE A SECOND FEMALE DIE MEMBER, POURING TOOL STEEL IN ITS LIQUID STATE INTO SAID SECOND FEMALE DIE MEMBER TO PRODUCE A SECOND MALE PUNCH MEMBER, REMOVING SAID SECOND MALE PUNCH MEMBER FROM SAID SECOND FEMALE DIE MEMBER.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |