US3360784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency recording using enhanced sensitivity thermoplastic media
Assignee: General Electric Co
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Filing: 1964-12-30
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Granted: 1967-12-26
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Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 Gaynor Joseph
- 👤 Laddie L Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/80; H04N5/82; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A DATA STORAGE SYSTEM EMPLOYGING A SOLID THERMOPLASTIC RECORDING MEDIUM, RECORDING MEANS FOR PROJECTING A BEAM OF CHARGES ONTO THE RECORDING MEDIUM IN INTELLIGENCE CONVEYING PATTERNS TO PRODUCE AN ELECTROSTATIC CHARGE PATTERN ON THE SURFACE OF THE MEDIUM THAT IS REPRESENTATIVE OF THE DATA BEING STORED, AND HEATING MEANS FOR HEATING THE RECORDING MEDIUM TO A SUFFICIENTLY FLUID CONDITION SO THAT THE ELECTROSTATIC CHARGE FORCES CAN DEFORM THE SURFACE WHEREBY UPON SUBSEQUENT COOLING PERMANENT DEFORMATIONS CAN BE DERIVED IN THE SURFACE OF THE RECORDING MEDIUM THAT ARE REPRESENTATIVE OF THE DATA BEING STORED, THE IMPROVEMENT COMPRISING MEANS FOR CHARGING THE SURFACE OF THE RECORDING MEDIUM TO A PREDETERMINED VOLTAGE RELATIVE TO A PREDETERMINED THRESHOLD VOLTAGE FOR DEFORMATION SUCH THAT THE RECORDING BEAM NEED ONLY SUPPLY THE ADDITIONAL CHARGING REQUIRED TO ALTER THE SURFACE VOLTAGE SUFFICIENTLY SO THAT UPON HEATING SELECTIVE DEFORMATION OF THE SURFACE OF THE RECORDING MEDIUM BY THE ELECTROSTATIC CHARGE FORCES IN ACCORDANCE WITH THE DATA TO BE STORED OCCURS.
Claim 2
Dependent Claim
163 words
IN A DATA STORAGE SYSTEM EMPLOYGING A SOLID THERMOPLASTIC RECORDING MEDIUM, RECORDING MEANS FOR PROJECTING A BEAM OF CHARGES ONTO THE RECORDING MEDIUM IN INTELLIGENCE CONVEYING PATTERNS TO PRODUCE AN ELECTROSTATIC CHARGE PATTERN ON THE SURFACE OF THE MEDIUM THAT IS REPRESENTATIVE OF THE DATA BEING STORED, AND HEATING MEANS FOR HEATING THE RECORDING MEDIUM TO A SUFFICIENTLY FLUID CONDITION SO THAT THE ELECTROSTATIC CHARGE FORCES CAN DEFORM THE SURFACE WHEREBY UPON SUBSEQUENT COOLING PERMANENT DEFORMATIONS CAN BE DERIVED IN THE SURFACE OF THE RECORDING MEDIUM THAT ARE REPRESENTATIVE OF THE DATA BEING STORED, THE IMPROVEMENT COMPRISING MEANS FOR CHARGING THE SURFACE OF THE RECORDING MEDIUM TO A PREDETERMINED VOLTAGE RELATIVE TO A PREDETERMINED THRESHOLD VOLTAGE FOR DEFORMATION SUCH THAT THE RECORDING BEAM NEED ONLY SUPPLY THE ADDITIONAL CHARGING REQUIRED TO ALTER THE SURFACE VOLTAGE SUFFICIENTLY SO THAT UPON HEATING SELECTIVE DEFORMATION OF THE SURFACE OF THE RECORDING MEDIUM BY THE ELECTROSTATIC CHARGE FORCES IN ACCORDANCE WITH THE DATA TO BE STORED OCCURS.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |