US3357402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush development
Assignee: Xerox Corp
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Filing: 1966-12-27
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Granted: 1967-12-12
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Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gopal C Bhagat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:25
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN AN ELECTROSTATIC IMAGE REPRODUCTION APPARATUS INCLUDING A MOVABLE PHOTOCONDUCTIVE SURFACE FOR CARRYING AN ELECTROSTATIC LATENT IMAGE THROUGH A DEVELOPMENT APPARATUS CONTAINING ELECTROSTATICALLY ATTRACTABLE TONER PARTICLES TO EFFECT DEVELOPMENT OF THE LATENT IMAGE INCLUDING: A HOUSING FOR CONTAINING THE TONER PARTICLES, A PLURALITY OF CYLINDRICAL BRUSHES HAVING BRISTLES ATTRACTABLE TRIBOELECTRICALLY TO THE TONER PARTICLES RADIALLY EXTENDING THEREFROM, SAID BRUSHES BEING ARRANGED IN SAID HOUSING AND ALONG THE PHOTOCONDUCTIVE SURFACE SUCH THAT THE TIPS OF THE BRISTLES OF EACH BRUSH TOUCH THE SURFACE DURING ROTATION THEREOF,
Claim 2
Dependent Claim
85 words
IN AN ELECTROSTATIC IMAGE REPRODUCTION APPARATUS INCLUDING A MOVABLE PHOTOCONDUCTIVE SURFACE FOR CARRYING AN ELECTROSTATIC LATENT IMAGE THROUGH A DEVELOPMENT APPARATUS CONTAINING ELECTROSTATICALLY ATTRACTABLE TONER PARTICLES TO EFFECT DEVELOPMENT OF THE LATENT IMAGE INCLUDING: A HOUSING FOR CONTAINING THE TONER PARTICLES, A PLURALITY OF CYLINDRICAL BRUSHES HAVING BRISTLES ATTRACTABLE TRIBOELECTRICALLY TO THE TONER PARTICLES RADIALLY EXTENDING THEREFROM, SAID BRUSHES BEING ARRANGED IN SAID HOUSING AND ALONG THE PHOTOCONDUCTIVE SURFACE SUCH THAT THE TIPS OF THE BRISTLES OF EACH BRUSH TOUCH THE SURFACE DURING ROTATION THEREOF,
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |