Patent US3238515A successfully refreshed from Google Patents.
US3238515A
Expired / Lapsed
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Magnetic data transfer apparatus
Assignee: Siemens Schuckertwerke AG
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Filing: 1961-04-13
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Granted: 1966-03-01
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Expires: 1981-04-13
Abstract
No abstract record available.
Inventors
- 👤 Schrader Albert
- 👤 Schenk Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:31
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
MAGNETIC DATA TRANSFER APPARATUS COMPRISING A DATA ENTERING DEVICE, DATA REPRODUCING MEANS REMOTE FROM SAID DATA ENTERING DEVICE AND A DATA STORER DEVICE MOVABLE ALONG A TRAVEL PATH INCLUDING A LOCATION OF PROXIMITY TO SAID ENTERING DEVICE AND A LOCATION OF PROXIMITY TO SAID REPRODUCING MEANS; AND A DATA STORER DEVICE HAVING A CARRIER STRUCTURE AND A GROUP OF PERMANENT MAGNETS INDIVIDUALLY ROTATABLE ON SAID STRUCTURE BETWEEN TWO GIVEN POSITIONS CORRESPONDING TO RESPECTIVELY DIFFERENT MAGNETIC ORIENTATIONS SUBSTANTIALLY AT A RIGHT ANGLE TO SAID TRAVEL PATH; SAID REPRODUCING MEANS HAVING TRANSDUCER MEANS RESPONSIVE TO THE FIELD AND MAGNETIC ORIENTATION OF SAID MAGNETS WHEN THE LATTER ARE IN PROXIMITY TO SAID TRANSDUCER MEANS; AND SAID DATA ENTERING DEVICE HAVING POLAR-
Claim 2
Dependent Claim
118 words
MAGNETIC DATA TRANSFER APPARATUS COMPRISING A DATA ENTERING DEVICE, DATA REPRODUCING MEANS REMOTE FROM SAID DATA ENTERING DEVICE AND A DATA STORER DEVICE MOVABLE ALONG A TRAVEL PATH INCLUDING A LOCATION OF PROXIMITY TO SAID ENTERING DEVICE AND A LOCATION OF PROXIMITY TO SAID REPRODUCING MEANS; AND A DATA STORER DEVICE HAVING A CARRIER STRUCTURE AND A GROUP OF PERMANENT MAGNETS INDIVIDUALLY ROTATABLE ON SAID STRUCTURE BETWEEN TWO GIVEN POSITIONS CORRESPONDING TO RESPECTIVELY DIFFERENT MAGNETIC ORIENTATIONS SUBSTANTIALLY AT A RIGHT ANGLE TO SAID TRAVEL PATH; SAID REPRODUCING MEANS HAVING TRANSDUCER MEANS RESPONSIVE TO THE FIELD AND MAGNETIC ORIENTATION OF SAID MAGNETS WHEN THE LATTER ARE IN PROXIMITY TO SAID TRANSDUCER MEANS; AND SAID DATA ENTERING DEVICE HAVING POLAR-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |