US2932742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic charging device and method
Assignee: Xerox Corp
•
Filing: 1955-03-22
•
Granted: 1960-04-12
•
Expires: 1975-03-22
Abstract
No abstract record available.
Inventors
- 👤 James P Ebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:19
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2086063A
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US2026725A
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US2692948A
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US2647464A
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US2777957A
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US2778946A
Cited
US2701764A
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US2684902A
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US2711481A
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US2768310A
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US2790082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |