US3474020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectrophoretic imaging process using quinacridones
Assignee: Xerox Corp
•
Filing: 1965-07-02
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Granted: 1969-10-21
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Vsevolod Tulagin
- 👤 Santokh S Labana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:07
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/44; G; G01; G01T; G01T1/00; G01T1/16; G01T1/26; G03; G03G; G03G13/00; G03G13/01; G03G13/14; G03G13/22; G03G13/24; G03G15/00; G03G15/01; G03G17/00; G03G17/04; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/12; H10; H10F; H10F99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2844484A
Cited
US2844485A
Cited
US3010883A
Cited
US3172827A
Cited
US3384566A
Cited
US3384565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |