Patent US3015304A successfully refreshed from Google Patents.
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
2026-11-03 22:30
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/18; G03G15/06; G03G15/08; G03G15/082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2297691A
Cited
US2576047A
Cited
US2752833A
Cited
US2824813A
Cited
GB734909A
Cited
US2777745A
Cited
US2761416A
Cited
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 |