US3350503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam recording and reproducing system
Assignee: 3M Co
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Filing: 1962-03-21
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Granted: 1967-10-31
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Gregg David Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:13
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; G; G11; G11B; G11B9/00; G11B9/10; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/41; H04N5/84; H04N5/91; H04N5/93; H04N5/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN COMBINATION FOR REPRODUCING SIGNALS FROM A MEDIUM MOVABLE IN A FIRST DIRECTION WHERE THE MEDIUM HAS CHARACTERISTICS FOR RESPONDING TO ENERGY DIRECTED AT THE MEDIUM IN ACCORDANCE WITH VARIATIONS IN THE PHYSICAL CHARACTERISTICS OF THE MEDIUM AT SUCCESSIVE POSITIONS, MEANS FOR PROVIDING A MOVEMENT OF THE MEDIUM IN A FIRST DIRECTION, MEANS DISPOSED RELATIVE TO THE MEDIUM FOR DIRECTING ENERGY IN A BEAM AT THE MEDIUM TO OBTAIN A RESPONSE BY THE MEDIUM IN ACCORDANCE WITH VARIATIONS IN THE PHYSICAL CHARACTERISTICS OF THE MEDIUM AT SUCCESSIVE POSITIONS, MEANS DISPOSED RELATIVE TO THE BEAM OF ENERGY FOR FOCUSSING THE BEAM DURING THE PASSAGE OF THE BEAM TOWARD THE MEDIUM, MEANS FOR PRODUCING OUTPUT SIGNALS HAVING CHARACTERISTICS REPRESENTING THE RESPONSE OF THE MEDIUM TO THE BEAM DIRECTED AT THE MEDIUM, AND MEANS RESPONSIVE TO THE RATE OF PRODUCTION OF THGE OUTPUT SIGNALS BY THE LAST MENTIONED MEANS FOR VARYING THE DIRECTION OF PASSAGE OF THE BEAM OF ENERGY TO THE MEDIUM IN A DIRECTION TRANSVERSE TO THE DIRECTION OF THE MEDIUM WITHOUT AFFECTING THE FOCUSSING ACTION BY THE FOCUSING MEANS ON THE BEAM OF ENERGY.
Claim 2
Dependent Claim
95 words
A RECORDING MEDIUM FOR USE WITH RECORD AND REPRODUCE MODES, INCLUDING, A BACKING MEMBER, A FIRST MATERIAL DISPOSED ON THE BACKING MEMBER AND HAVING PROPERTIES OF SECONDARILY EMITTING CHARGED PARTICLES WHEN SUBJECTED TO A BEAM OF ENERGY DURING THE REPRODUCE MODE, AND A SECOND MATERIAL DISPOSED ON THE FIRST MATERIAL AND HAVING PROPERTIES OF INHIBITING THE SECONDARY EMISSION OF CHARGED PARTICLES WHEN SUBJECTED TO THE BEAM OF ENERGY DURING THE REPRODUCE MODE AND FURTHER HAVING PROPERTIES OF BECOMING REMOVED TO EXPOSE THE FIRST MATERIAL WHEN SUBJECTED TO A BEAM OF ENERGY DURING THE RECORD MODE.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |