US3322004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating steel rule dies
Assignee: BARRETT BINDERY CO
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Filing: 1965-11-17
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Granted: 1967-05-30
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Edgar H Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:13
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/28; B23P15/40; B23P15/406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD OF MAKING A STEEL RULE DIE COMPRISING THE STEPS OF CURVING A BASE MEMBER FOR THE DIE TO A CURVATURE OF PREDETERMINED RADIUS CORRESPONDING TO THE RADIUS OF A CYLINDER FOR CARRYING THE DIE, INSCRIBING A DESIRED DIE PATTERN ON A SURFACE OF SAID CURVED BASE MEMBER, STRAIGHTENING AND BASE MEMBER TO LIE IN A SUBSTANTIALLY FLAT PLANE, FORMING RECESSES IN SAID BASE MEMBER CONFORMING TO THE INSCRIBED PATTERN ON SAID SURFACE THEREOF, AGAIN CURVING SAID BASE MEMBER TO A CURVATURE OF SAID PREDETERMINED RADIUS FOR MOUNTING ON SAID CYLINDER, AND INSERTING STEEL RULES IN SAID RECESSES OF SAID BASE MEMBER.
Claim 2
Independent Claim
103 words
THE METHOD OF MAKING A STEEL RULE DIE COMPRISING THE STEPS OF CURVING A BASE MEMBER FOR THE DIE TO A CURVATURE OF PREDETERMINED RADIUS CORRESPONDING TO THE RADIUS OF A CYLINDER FOR CARRYING THE DIE, INSCRIBING A DESIRED DIE PATTERN ON A SURFACE OF SAID CURVED BASE MEMBER, STRAIGHTENING AND BASE MEMBER TO LIE IN A SUBSTANTIALLY FLAT PLANE, FORMING RECESSES IN SAID BASE MEMBER CONFORMING TO THE INSCRIBED PATTERN ON SAID SURFACE THEREOF, AGAIN CURVING SAID BASE MEMBER TO A CURVATURE OF SAID PREDETERMINED RADIUS FOR MOUNTING ON SAID CYLINDER, AND INSERTING STEEL RULES IN SAID RECESSES OF SAID BASE 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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |