US3308473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture signal receiving system
Assignee: Toshiba Corp
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Filing: 1963-03-21
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Granted: 1967-03-07
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Expires: 1983-03-21
Abstract
No abstract record available.
Inventors
- 👤 Sawazaki Norikazu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:29
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G03; G03G; G03G15/00; G03G15/22; G03G15/221; H; H04; H04N; H04N1/00; H04N1/04; H04N1/10; H04N1/1008; H04N1/23; H04N1/27; H04N1/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A PICTURE SIGNAL RECEIVING DEVICE COMPRISING (A) A TRANSPARENT PICTURE RECEIVING PLATE INCLUDING A TRANSPARENT BASE PLATE, AND AN INSULATING LAYER ATTACHED THERETO, (B) A CHARGER MOUNTED FOR RELATIVE MOVEMENT IN A PLANE PARALLEL TO SAID TRANSPARENT PICTURE RECEIVING PLATE INCLUDING AN ENDLESS BELT MOUNTED IN A PLANE OF ROTATION PERPENDICULAR TO SAID BASE PLATE, AT LEAST TWO RECORDING NEEDLE ELECTRODES MOUNTED ON SAID ENDLESS BELT AND POSITIONED SO AS TO MAKE ELECTRICAL CONTACT WITH THE SURFACE OF SAID RECEIVING PLATE, MEANS TO APPLY PICTURE SIGNAL VOLTAGES TO SAID NEEDLE ELECTRODES FOR PRODUCING AN ELECTROSTATIC LATENT IMAGE ON SAID RECEIVING PLATE IN ACCORDANCE WITH SAID PICTURE SIGNAL VOLTAGES, A PAIR OF MAGNETIC BRUSHES DISPOSED ON OPPOSITE SIDES OF SAID CHARGER AND ROTATIVELY JOURNALLED IN A BOX, ONE OF SAID PAIR OF MAGNETIC BRUSHES POSITIONED TO ERASE PRIOR EXISTING DEVELOPED POWDER, AND DEVELOPING POWDER POSITIONED FOR PICKUP BY THE OTHER OF SAID PAIR OF MAGNETIC BRUSHES WHEREBY SAID LATENT ELECTROSTATIC IMAGE IS DEVELOPED.
Claim 2
Dependent Claim
162 words
A PICTURE SIGNAL RECEIVING DEVICE COMPRISING (A) A TRANSPARENT PICTURE RECEIVING PLATE INCLUDING A TRANSPARENT BASE PLATE, AND AN INSULATING LAYER ATTACHED THERETO, (B) A CHARGER MOUNTED FOR RELATIVE MOVEMENT IN A PLANE PARALLEL TO SAID TRANSPARENT PICTURE RECEIVING PLATE INCLUDING AN ENDLESS BELT MOUNTED IN A PLANE OF ROTATION PERPENDICULAR TO SAID BASE PLATE, AT LEAST TWO RECORDING NEEDLE ELECTRODES MOUNTED ON SAID ENDLESS BELT AND POSITIONED SO AS TO MAKE ELECTRICAL CONTACT WITH THE SURFACE OF SAID RECEIVING PLATE, MEANS TO APPLY PICTURE SIGNAL VOLTAGES TO SAID NEEDLE ELECTRODES FOR PRODUCING AN ELECTROSTATIC LATENT IMAGE ON SAID RECEIVING PLATE IN ACCORDANCE WITH SAID PICTURE SIGNAL VOLTAGES, A PAIR OF MAGNETIC BRUSHES DISPOSED ON OPPOSITE SIDES OF SAID CHARGER AND ROTATIVELY JOURNALLED IN A BOX, ONE OF SAID PAIR OF MAGNETIC BRUSHES POSITIONED TO ERASE PRIOR EXISTING DEVELOPED POWDER, AND DEVELOPING POWDER POSITIONED FOR PICKUP BY THE OTHER OF SAID PAIR OF MAGNETIC BRUSHES WHEREBY SAID LATENT ELECTROSTATIC IMAGE IS DEVELOPED.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |