US3424615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cleaning xerographic plates
Assignee: Xerox Corp
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Filing: 1966-01-03
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Granted: 1969-01-28
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Roger H Eichorn
- 👤 Norbett H Kaupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:36
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0047; G03G2221/00; G03G2221/0005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF REMOVING RESIDUAL DEVELOPING POWDER FROM AN ELECTROPHOTOGRAPHIC MEMBER COMPRISING PROPELLING A GRANULE PARTICLE HAVING TRIBOELECTRIC PROPERTIES SUFFICIENT TO ATTRACT RESIDUAL POWDER AGAINST AN ELECTROPHOTOGRAPHIC PLATE SO THAT SAID GRANULES ARE PLACED IN CONTACT WITH SAID RESIDUAL POWDER, INTERRUPTING THE FLIGHT OF THE PROPELLED CLEANING GRANULES LEAVING THE ELECTROPHOTOGRAPHIC MEMBER WITH AN ELECTRICALLY INSULATED CONDUCTIVE GRID,
Claim 2
Independent Claim
58 words
A METHOD OF REMOVING RESIDUAL DEVELOPING POWDER FROM AN ELECTROPHOTOGRAPHIC MEMBER COMPRISING PROPELLING A GRANULE PARTICLE HAVING TRIBOELECTRIC PROPERTIES SUFFICIENT TO ATTRACT RESIDUAL POWDER AGAINST AN ELECTROPHOTOGRAPHIC PLATE SO THAT SAID GRANULES ARE PLACED IN CONTACT WITH SAID RESIDUAL POWDER, INTERRUPTING THE FLIGHT OF THE PROPELLED CLEANING GRANULES LEAVING THE ELECTROPHOTOGRAPHIC MEMBER WITH AN ELECTRICALLY INSULATED CONDUCTIVE GRID,
References Cited (Backward Citations)
US2752271A
Cited
US2965756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |