US3233156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic charging methods and apparatus
Assignee: Eastman Kodak Co
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Filing: 1961-06-07
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Granted: 1966-02-01
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Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 James G Jarvis
- 👤 Gene H Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF UNIFORMLY CHARGING A SURFACE WHICH COMPRISES SIMULTANEOUSLY SWEEPING THE SURFACE WITH A LINE OF DISTINCT CORONA PRODUCED CHARGING AREAS, WHICH AREAS MOVE ALONG PATHS IN A DIRECTION OBLIGUE TO SAID LINE, EACH PATH OVERLAPPING THE ADJACENT PATH AND CONTINUOUSLY REPLACING THE CORONA SOURCE OF EACH CHARGING AREA WITH ANOTHER CORONA SOURCE WHILE MAINTAINING THE DISTANCE BETWEEN THE SURFACE AND THE CORONA SOURCES CONSTANT.
Claim 2
Independent Claim
66 words
THE METHOD OF UNIFORMLY CHARGING A SURFACE WHICH COMPRISES SIMULTANEOUSLY SWEEPING THE SURFACE WITH A LINE OF DISTINCT CORONA PRODUCED CHARGING AREAS, WHICH AREAS MOVE ALONG PATHS IN A DIRECTION OBLIGUE TO SAID LINE, EACH PATH OVERLAPPING THE ADJACENT PATH AND CONTINUOUSLY REPLACING THE CORONA SOURCE OF EACH CHARGING AREA WITH ANOTHER CORONA SOURCE WHILE MAINTAINING THE DISTANCE BETWEEN THE SURFACE AND THE CORONA SOURCES CONSTANT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |