US3268987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making transducer head cores
Assignee: Individual
•
Filing: 1959-05-11
•
Granted: 1966-08-30
•
Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Adams Edmond
- 👤 William M Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/1272; G11B5/187; G11B5/1871; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49036; Y10T29/49043; Y10T29/49055; Y10T29/49067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF FABRICATING A MULTI-STRUCTURED TRANSDUCER HEAD CORE HAVING A BODY CONSTITUTED OF LOW RELUCTANCE, PHYSICALLY-SOFT ALLOY AND A TAPE CONTACTING PORTION OF A LOW RELUCTANCE, PHYSICALLY-HARD ALLOY COMPRISING THE STEPS OF METALLICALLY AND INTEGRALLY FUSING SUITABLY CONFIGURED MATERIAL OF A PHYSICALLY-HARD ALLOY TO FORM SAID TAPE CONTACTING PORTION TO SUITABLY CONFIGURED MATERIAL OF A PHYSICALLY-SOFT ALLOY TO FORM SAID BODY, FORMING THE FUSED MATERIALS INTO A DESIRED CORE CONFIGURATION, HEAT TREATING THE FORMED CORE TO DEVELOP THE MAGNETIC PROPERTIES, AND WORKING THE CORE INTO A DIMENSIONALLY MATED PRODUCT.
Claim 2
Independent Claim
90 words
THE METHOD OF FABRICATING A MULTI-STRUCTURED TRANSDUCER HEAD CORE HAVING A BODY CONSTITUTED OF LOW RELUCTANCE, PHYSICALLY-SOFT ALLOY AND A TAPE CONTACTING PORTION OF A LOW RELUCTANCE, PHYSICALLY-HARD ALLOY COMPRISING THE STEPS OF METALLICALLY AND INTEGRALLY FUSING SUITABLY CONFIGURED MATERIAL OF A PHYSICALLY-HARD ALLOY TO FORM SAID TAPE CONTACTING PORTION TO SUITABLY CONFIGURED MATERIAL OF A PHYSICALLY-SOFT ALLOY TO FORM SAID BODY, FORMING THE FUSED MATERIALS INTO A DESIRED CORE CONFIGURATION, HEAT TREATING THE FORMED CORE TO DEVELOP THE MAGNETIC PROPERTIES, AND WORKING THE CORE INTO A DIMENSIONALLY MATED PRODUCT.
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |