Patent US3011978A successfully refreshed from Google Patents.
US3011978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminescent printing composition and method of making the same
Assignee: Unisys Corp
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Filing: 1959-07-16
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Granted: 1961-12-05
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Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Earl J Gosnell
- 👤 Curtis W Ingalls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:36
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/50; C09K; C09K11/00; C09K11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A LUMINESCENT PRINTING COMPOSITION, CONSISTING ESSENTIALLY OF: A SYNTHETIC LIQUID POLYBUTENE VEHICLE HAVING A VISCOSITY AT ROOM TEMPERATURE WITHIN THE RANGE OF 2.5 TO 1,000 POISES AND AN AVERAGE MOLECULAR WEIGHT WITHIN THE APPROXIMATE RANGE OF 400 TO 1,300, AND PARTICULATE SOLID MATERIALS IN SAID VEHICLE, SAID SOLID MATERIALS COMPRISING A PHOTOLUMINESCENT PIGMENT, SELECTED FROM THE GROUP CONSISTING OF SULFIDES OF ZINC, OF CADMIUM, AND COMBINATIONS THEREOF AND HAVING PRINTABLE PARTICLE SIZES, DISPERSED THROUGHOUT SAID VEHICLE IN A PROPORTION OF BETWEEN ONE FOURTH PART AND TWO PARTS BY WEIGHT OF SUCH PHOTOLUMINESCENT PIGMENT PER PART OF SAID VEHICLE, AND SAID SOLID MATERIALS FURTHER COMPRISING POWDER PARTICLES, SUBSTANTIALLY LESS THAN FIVE MICRONS IN SIZE, OF THE MAGNESIUM SALT OF 3QUINOLINOL DISPERSED IN SAID VEHICLE IN A PROPORTION OF BETWEEN TWO PERCENT AND SIX PERCENT OF THE ENTIRE WEIGHT OF THE PRINTING COMPOSITION.
Claim 2
Dependent Claim
141 words
A LUMINESCENT PRINTING COMPOSITION, CONSISTING ESSENTIALLY OF: A SYNTHETIC LIQUID POLYBUTENE VEHICLE HAVING A VISCOSITY AT ROOM TEMPERATURE WITHIN THE RANGE OF 2.5 TO 1,000 POISES AND AN AVERAGE MOLECULAR WEIGHT WITHIN THE APPROXIMATE RANGE OF 400 TO 1,300, AND PARTICULATE SOLID MATERIALS IN SAID VEHICLE, SAID SOLID MATERIALS COMPRISING A PHOTOLUMINESCENT PIGMENT, SELECTED FROM THE GROUP CONSISTING OF SULFIDES OF ZINC, OF CADMIUM, AND COMBINATIONS THEREOF AND HAVING PRINTABLE PARTICLE SIZES, DISPERSED THROUGHOUT SAID VEHICLE IN A PROPORTION OF BETWEEN ONE FOURTH PART AND TWO PARTS BY WEIGHT OF SUCH PHOTOLUMINESCENT PIGMENT PER PART OF SAID VEHICLE, AND SAID SOLID MATERIALS FURTHER COMPRISING POWDER PARTICLES, SUBSTANTIALLY LESS THAN FIVE MICRONS IN SIZE, OF THE MAGNESIUM SALT OF 3QUINOLINOL DISPERSED IN SAID VEHICLE IN A PROPORTION OF BETWEEN TWO PERCENT AND SIX PERCENT OF THE ENTIRE WEIGHT OF THE PRINTING COMPOSITION.
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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |