Patent US3816157A successfully refreshed from Google Patents.
US3816157A
Expired / Lapsed
US
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Toner reclaiming method
Assignee: Xerox Corp
•
Filing: 1971-08-02
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Granted: 1974-06-11
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Expires: 1991-08-02
Abstract
Abstract A toner reclaiming method includes the steps of directing removed toner particles into the vicinity of a surface and electrically charging the particles to a potential that will attract them to the surface, and then removing the toner particles from the surface and combining them with a flow of carrier beads so that a developing mixture is collected for reuse.
Inventors
- 👤 J Donohue
- 👤 D Gerbasi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:29
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/105
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
A method as set forth in claim 1, and including the further step of removing any toner particles not removed by the step of contacting said surface with said carrier beads.
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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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |