Patent US3303401A successfully refreshed from Google Patents.
US3303401A
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Method and apparatus for imparting an electrostatic charge to a layer of insulating material
Assignee: Azoplate Corp
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Filing: 1963-07-17
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Granted: 1967-02-07
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Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 Naumann Gerhard
- 👤 Endermann Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:45
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/36; G03; G03G; G03G15/00; G03G15/02; G03G15/0291; H; H01; H01T; H01T19/00; H01T19/04; H05; H05F; H05F3/00; H05F3/04; G03G2215/00; G03G2215/02; G03G2215/026; G03G2215/028; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN APPARATUS FOR ELECTROSTATICALLY CHARGING A PHOTOCONDUCTIVE LAYER COMPRISING AT LEAST ONE DISCHARGE ELECTRODE FORMED BY A PLURALITY OF ELECTRICALLY CONNECTED SPACED NEEDLES MOUNTED SUBSTANTIALLY PERPENDICULARLY TO AND EXTENDING ACROSS A PATH TRAVERSED BY THE LAYER, AT LEAST ONE AUXILIARY ELECTRODE ADJACENT TO AND SPACED LATERALLY FROM THE DISCHARGE ELECTRODE, AT LEAST ONE COUNTERELECTRODE POSITIONED ON THE OTHER SIDE OF THE PATH, THE DISTANCE BETWEEN THE DISCHARGE ELECTRODE AND THE PATH BEING GREATER THAN THE DISTANCE BETWEEN THE DISCHARGE ELECTRODE AND THE AUXILIARY ELECTRODE AND THE LATTER DISTANCE BEING GREATER THAN THE DISTANCE BETWEEN ADJACENT
Claim 2
Independent Claim
95 words
AN APPARATUS FOR ELECTROSTATICALLY CHARGING A PHOTOCONDUCTIVE LAYER COMPRISING AT LEAST ONE DISCHARGE ELECTRODE FORMED BY A PLURALITY OF ELECTRICALLY CONNECTED SPACED NEEDLES MOUNTED SUBSTANTIALLY PERPENDICULARLY TO AND EXTENDING ACROSS A PATH TRAVERSED BY THE LAYER, AT LEAST ONE AUXILIARY ELECTRODE ADJACENT TO AND SPACED LATERALLY FROM THE DISCHARGE ELECTRODE, AT LEAST ONE COUNTERELECTRODE POSITIONED ON THE OTHER SIDE OF THE PATH, THE DISTANCE BETWEEN THE DISCHARGE ELECTRODE AND THE PATH BEING GREATER THAN THE DISTANCE BETWEEN THE DISCHARGE ELECTRODE AND THE AUXILIARY ELECTRODE AND THE LATTER DISTANCE BEING GREATER THAN THE DISTANCE BETWEEN ADJACENT
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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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |