Patent US3565805A successfully refreshed from Google Patents.
US3565805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic developer mix
Assignee: AB Dick Co
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Filing: 1963-08-30
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Granted: 1971-02-23
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Expires: 1983-08-30
Abstract
Abstract 9. A DEVELOPING POWDER FOR USE IN DEVELOPING ELECTROSTATIC IMAGES COMPRISING A MIXTURE OF TONER PARTICLES AND CARRIER PARTICLES FOR SAID TONER PARTICLES, SAID CARRIER PARTICLES BEING COATED WITH FROM 0.01% TO 1% BY WEIGHT OF AN OLEAGINOUS SUBSTANCE BASED ON THE WEIGHT OF SAID CARRIER PARTICLES.
Inventors
- 👤 Viron V Jones
- 👤 Karel Kriz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:42
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/087; G03G9/08742; G03G9/08766; G03G9/08773; G03G9/08775; G03G9/097; G03G9/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A DEVELOPING POWDER FOR USE IN DEVELOPING ELECTROSTATIC IMAGES COMPRISING A MIXTURE OF TONER PARTICLES AND CARRIER PARTICLES FOR SAID TONER PARTICLES, SAID CARRIER PARTICLES BEING COATED WITH FROM 0.01% TO 1% BY WEIGHT OF AN OLEAGINOUS SUBSTANCE BASED ON THE WEIGHT OF SAID CARRIER PARTICLES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |