US3230303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Half-tone color display generating system
Assignee: Metromedia Inc
•
Filing: 1962-07-02
•
Granted: 1966-01-18
•
Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Macovski Albert
- 👤 Earle D Jones
- 👤 Hugh F Frohbach
- 👤 David G Remington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:06
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0105; G03G15/011; H; H04; H04N; H04N1/00; H04N1/04; H04N1/207; H04N1/46; H04N1/50; H04N1/506; H04N1/508; H04N1/52; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
APPARATUS FOR MAKING A COPY IN COLOR OF A COLORED ORIGINAL COMPRISING AN ELECTROSTATIC TRANSDUCER, MEANS FOR SUCCESSIVELY SCANNING PICTURE ELEMENTS IN SAID ORIGINAL WHILE TRAVERSING PICTURE-ELEMENT AREAS OF SAID COPY WITH SAID ELECTROSTATIC TRANSDUCER, MEANS RESPONSIVE TO SAID MEANS FOR SCANNING TO GENERATE A SEPARATE PULSE SIGNAL FOR EACH ELEMENTARY COLOR IN EACH OUCTURE ELEMENT, EACH SAID SEPARATE PULSE SIGNAL HAVING ITS WIDTH REPRESENTATIVE OF THE ELEMENTARY COLOR SATURATION OF SAID PICTURE ELEMENT, MEANS FOR APPLYING TO SAID ELECTROSTATIC TRANSDUCER SEPARATELY SAID PULSE SIGNALS FOR EACH COLOR FOR DEPOSITING ELECTRIC CHARGES OVER A PORTION OF EACH PICTURE ELE-
Claim 2
Dependent Claim
99 words
APPARATUS FOR MAKING A COPY IN COLOR OF A COLORED ORIGINAL COMPRISING AN ELECTROSTATIC TRANSDUCER, MEANS FOR SUCCESSIVELY SCANNING PICTURE ELEMENTS IN SAID ORIGINAL WHILE TRAVERSING PICTURE-ELEMENT AREAS OF SAID COPY WITH SAID ELECTROSTATIC TRANSDUCER, MEANS RESPONSIVE TO SAID MEANS FOR SCANNING TO GENERATE A SEPARATE PULSE SIGNAL FOR EACH ELEMENTARY COLOR IN EACH OUCTURE ELEMENT, EACH SAID SEPARATE PULSE SIGNAL HAVING ITS WIDTH REPRESENTATIVE OF THE ELEMENTARY COLOR SATURATION OF SAID PICTURE ELEMENT, MEANS FOR APPLYING TO SAID ELECTROSTATIC TRANSDUCER SEPARATELY SAID PULSE SIGNALS FOR EACH COLOR FOR DEPOSITING ELECTRIC CHARGES OVER A PORTION OF EACH PICTURE ELE-
References Cited (Backward Citations)
US1190095A
Cited
US2434561A
Cited
US2510121A
Cited
US2572550A
Cited
US2976354A
Cited
US2924653A
Cited
US2986466A
Cited
DE1073866B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |