US3060134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive zinc oxide pigment
Assignee: New Jersey Zinc Co
•
Filing: 1959-03-03
•
Granted: 1962-10-23
•
Expires: 1979-03-03
Abstract
No abstract record available.
Inventors
- 👤 Elder James Tait
- 👤 Bieling Carl Richard
- 👤 Blakeslee A Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:10
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/04; C09C1/043; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/80; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE METHOD OF PRODUCING A ZINC OXIDE PRODUCT PANCHROMATICALLY SENSITIVE TO LIGHT-DISCHARGE OF AN ACCEPTED ELECTROSTATIC CHARGE WHICH COMPRISES EXPOSING PARTICLES OF HIGH PURITY ZINC OXIDE PIGMENT TO A SULFIDING ENVIRONMENT UNDER REACTION CONDITIONS WHICH WILL FORM ONLY A THIN LAYER OF ZINC SULFIDE ON THE ZINC OXIDE PARTICLES, AND THEREAFTER HEATING THE RESULTING ZINC SULFIDECOATED ZINC OXIDE PARTICLES IN AN INERT ATMOSPHERE TO A TEMPERATURE WIHIN THE RANGE OF ABOUT 250* TO 450*C. TO CONVERT THE COATING TO A COMPLEX OF ZINC OXIDE AND ZINC SULFIDE.
Claim 2
Independent Claim
87 words
THE METHOD OF PRODUCING A ZINC OXIDE PRODUCT PANCHROMATICALLY SENSITIVE TO LIGHT-DISCHARGE OF AN ACCEPTED ELECTROSTATIC CHARGE WHICH COMPRISES EXPOSING PARTICLES OF HIGH PURITY ZINC OXIDE PIGMENT TO A SULFIDING ENVIRONMENT UNDER REACTION CONDITIONS WHICH WILL FORM ONLY A THIN LAYER OF ZINC SULFIDE ON THE ZINC OXIDE PARTICLES, AND THEREAFTER HEATING THE RESULTING ZINC SULFIDECOATED ZINC OXIDE PARTICLES IN AN INERT ATMOSPHERE TO A TEMPERATURE WIHIN THE RANGE OF ABOUT 250* TO 450*C. TO CONVERT THE COATING TO A COMPLEX OF ZINC OXIDE AND ZINC SULFIDE.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |