Patent US4499907A successfully refreshed from Google Patents.
US3391014A
Expired / Lapsed
US
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Liquid development of electrostatic images
Assignee: Harris Graphics Corp
•
Filing: 1964-04-27
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Granted: 1968-07-02
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Donald L Fauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:38
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/122; G03G9/13; G03G9/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3080251A
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US3241957A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |