US3420734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming electrostatic printing paper from ionic fibrous cellulosic derivatives and paper thereof
Assignee: Fort James Corp
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Filing: 1965-04-02
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Granted: 1969-01-07
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Nils T Anderson
- 👤 William M Hearon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:04
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/101; G03G5/105; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |