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US3072751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and reproducing means
Assignee: RCA Corp
•
Filing: 1954-06-01
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Granted: 1963-01-08
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Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Vladimir K Zworykin
- 👤 Paul K Weimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:53
CPC Classifications
G; G11; G11B; G11B11/00; G11B11/10; G11B11/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A MAGNETIC RECORDING SYSTEM COMPRISING MEANS DEFINING A VACUUM CHAMBER, MEANS IN SAID VACUUM CHAMBER FOR DEFINING A PATH OF ADVANCEMENT FOR A MAGNETIZABLE RECORD RECEIVING MEMBER, MEANS ADJACENT SAID PATH FOR PREMAGNETIZING THE RECORD RECEIVING MEMBER, MEANS WITH IN SAID CHAMBER FOR BOMBARDING SAID RECORD RECEIVING MEMBER WITH A HIGH VELOCITY, HIGH INTENSITY BEAM OF ELECTRONS TO HEAT SELECTED AREAS OF SAID RECORD RECEIVING MEMBER TO A TEMPERATURE IN THE RANGE OF CURIE TEMPERATURES, AND MEANS FOR MODULATING THE INTENSITY OF SAID BEAM OF ELECTRONS IN ACCORDANCE WITH SIGNAL ENERGY TO BE RECORDED.
Claim 2
Dependent Claim
94 words
A MAGNETIC RECORDING SYSTEM COMPRISING MEANS DEFINING A VACUUM CHAMBER, MEANS IN SAID VACUUM CHAMBER FOR DEFINING A PATH OF ADVANCEMENT FOR A MAGNETIZABLE RECORD RECEIVING MEMBER, MEANS ADJACENT SAID PATH FOR PREMAGNETIZING THE RECORD RECEIVING MEMBER, MEANS WITH IN SAID CHAMBER FOR BOMBARDING SAID RECORD RECEIVING MEMBER WITH A HIGH VELOCITY, HIGH INTENSITY BEAM OF ELECTRONS TO HEAT SELECTED AREAS OF SAID RECORD RECEIVING MEMBER TO A TEMPERATURE IN THE RANGE OF CURIE TEMPERATURES, AND MEANS FOR MODULATING THE INTENSITY OF SAID BEAM OF ELECTRONS IN ACCORDANCE WITH SIGNAL ENERGY TO BE RECORDED.
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |