US3015304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic image reproduction
Assignee: Xerox Corp
•
Filing: 1957-10-02
•
Granted: 1962-01-02
•
Expires: 1977-10-02
Abstract
No abstract record available.
Inventors
- 👤 Chester F Carlson
- 👤 Bogdonoff Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:56
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/18; G03G15/06; G03G15/08; G03G15/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297691A
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US2576047A
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US2752833A
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US2824813A
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GB734909A
Cited
US2777745A
Cited
US2761416A
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US2825814A
Cited
FR1112180A
Cited
US2726940A
Cited
US2913353A
Cited
US2857290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |