Patent US2802071A successfully refreshed from Google Patents.
Patent US3117488A successfully refreshed from Google Patents.
US3117488A
Expired / Lapsed
US
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Color pattern display system
Assignee: TDK Micronas GmbH
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Filing: 1960-04-12
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Granted: 1964-01-14
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Expires: 1980-04-12
Abstract
No abstract record available.
Inventors
- 👤 Ames F Giordano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/12; G09F19/18; G03; G03B; G03B21/00; G09F13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A DISPLAY SYSTEM COMPRISING A DISPLAY MEANS, SAID DISPLAY MEANS HAVING AT LEAST A GIVEN SELECTED AREA, A SOURCE OF WHITE LIGHT, A SOURCE OF COLORED LIGHT, MEANS FOR SIMULTANEOUSLY PROJECTING WHITE AND COLORED LIGHT ON SAID DISPLAY MEANS, AND A TRANSPARENT MEDIUM HAVING A PLURALITY OF ELEMENTS DISPOSED THEREON INCLUDING LIGHT TRANSPARENT AND OPAQUE ELEMENTS FOR SIMULTANEOUSLY VARYING THE AMOUNT OF COLORED AND WHITE LIGHT APPLIED TO SAID GIVEN AREA TO PRODUCE THEREIN A PORTION HAVING A COLOR OTHER THAN THE COLOR OF SAID COLORED LIGHT SOURCE AND IN ANOTHER PORTION A COLOR HAVING A COLOR DIFFERENT FROM SAID OTHER COLOR.
Claim 2
Dependent Claim
102 words
A DISPLAY SYSTEM COMPRISING A DISPLAY MEANS, SAID DISPLAY MEANS HAVING AT LEAST A GIVEN SELECTED AREA, A SOURCE OF WHITE LIGHT, A SOURCE OF COLORED LIGHT, MEANS FOR SIMULTANEOUSLY PROJECTING WHITE AND COLORED LIGHT ON SAID DISPLAY MEANS, AND A TRANSPARENT MEDIUM HAVING A PLURALITY OF ELEMENTS DISPOSED THEREON INCLUDING LIGHT TRANSPARENT AND OPAQUE ELEMENTS FOR SIMULTANEOUSLY VARYING THE AMOUNT OF COLORED AND WHITE LIGHT APPLIED TO SAID GIVEN AREA TO PRODUCE THEREIN A PORTION HAVING A COLOR OTHER THAN THE COLOR OF SAID COLORED LIGHT SOURCE AND IN ANOTHER PORTION A COLOR HAVING A COLOR DIFFERENT FROM SAID OTHER COLOR.
References Cited (Backward Citations)
GB723534A
Cited
GB191400636A
Cited
GB495821A
Cited
US2755715A
Cited
US2958258A
Cited
US2862818A
Cited
US2854886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |