Patent US3225470A successfully refreshed from Google Patents.
US3225470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-reactant display devices
Assignee: NCR Voyix Corp
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Filing: 1964-03-06
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Granted: 1965-12-28
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Expires: 1984-03-06
Abstract
No abstract record available.
Inventors
- 👤 Schwab Helmut
- 👤 William R Horst
- 👤 Carol Stowe Van Voorhis
- 👤 Stanley F Coil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:22
CPC Classifications
G; G09; G09F; G09F13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A DISPLAY DEVICE INCLUDING IN COMBINATION (A) A VESSEL CONTAINING A BODY OF LIQUID THAT IS COLORABLE IN HUE BY INCIDENT ULTRAVIOLET LIGHT, SAID HUE FADING DURING A PERIOD OF TIME, THE COLORED HUE BEING VISIBLY BUT FADINGLY PERCEPTIBLE DURING SAID PERIOD; (B) MEANS OPERABLE TO PROJECT A PATTERNED BEAM OF ULTRAVIOLET LIGHT INTO SAID BODY OF LIQUID TO MAKE A CORRESPONDING COLORED IMAGE IN THE BODY OF LIQUID; AND (C) IMAGE DELETION MEANS OPERABLE TO BUBBLE GAS
Claim 2
Dependent Claim
78 words
A DISPLAY DEVICE INCLUDING IN COMBINATION (A) A VESSEL CONTAINING A BODY OF LIQUID THAT IS COLORABLE IN HUE BY INCIDENT ULTRAVIOLET LIGHT, SAID HUE FADING DURING A PERIOD OF TIME, THE COLORED HUE BEING VISIBLY BUT FADINGLY PERCEPTIBLE DURING SAID PERIOD; (B) MEANS OPERABLE TO PROJECT A PATTERNED BEAM OF ULTRAVIOLET LIGHT INTO SAID BODY OF LIQUID TO MAKE A CORRESPONDING COLORED IMAGE IN THE BODY OF LIQUID; AND (C) IMAGE DELETION MEANS OPERABLE TO BUBBLE GAS
References Cited (Backward Citations)
US1004503A
Cited
US1592393A
Cited
US1428639A
Cited
US1934419A
Cited
US2486859A
Cited
US3200525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |