US3489559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Components for electrophotographic compositions and processes
Assignee: Mead Corp
•
Filing: 1965-05-28
•
Granted: 1970-01-13
•
Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Philip C Clark
- 👤 Wilbur L Kite Jr
- 👤 Frederick W Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:29
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0592
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2993787A
Cited
US2959481A
Cited
US3160503A
Cited
US3234160A
Cited
US3241958A
Cited
US3306743A
Cited
US3404979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |