US3375807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic developer
Assignee: Xerox Corp
•
Filing: 1965-10-22
•
Granted: 1968-04-02
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Roger H Eichorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:23
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/06; G03G21/08; G03G15/00; G03G15/22; G03G15/28; G03G15/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2221776A
Cited
AT210744B
Cited
US3008826A
Cited
GB927928A
Cited
US3071645A
Cited
US3081737A
Cited
US3133834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |