Patent US4670477A successfully refreshed from Google Patents.
Patent US3220868A successfully refreshed from Google Patents.
US3220868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light- and weather-resistant yellow cadmium pigment
Assignee: Bayer AG
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Filing: 1962-06-20
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Granted: 1965-11-30
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Expires: 1982-06-20
Abstract
No abstract record available.
Inventors
- 👤 Flasch Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:09
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/10; C09C1/12; C01; C01P; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A CADMIUM SULFIDE YELLOW PIGMENT HAVING EXCELLENT FASTNESS TO LIGHT AND VERY GOOD STABILITY TO ATMOSPHERIC INFLUENCES CONSISTING ESSENTIALLY OF A CADMIUM SULFIDE PIGMENT HAVING INCORPORATED INTO THE CADMIUM SULFIDE CRYSTAL LATTICE BETWEEN ABOUT 1.5 AND ABOUT 9% OF SELENIUM AND BETWEEN ABOUT 7.0 AND 20% OF ZINC.
Claim 2
Dependent Claim
48 words
A CADMIUM SULFIDE YELLOW PIGMENT HAVING EXCELLENT FASTNESS TO LIGHT AND VERY GOOD STABILITY TO ATMOSPHERIC INFLUENCES CONSISTING ESSENTIALLY OF A CADMIUM SULFIDE PIGMENT HAVING INCORPORATED INTO THE CADMIUM SULFIDE CRYSTAL LATTICE BETWEEN ABOUT 1.5 AND ABOUT 9% OF SELENIUM AND BETWEEN ABOUT 7.0 AND 20% OF ZINC.
References Cited (Backward Citations)
US2605167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |