US3481739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Increased speed in nonsilver light sensitive systems by incorporating therein organic n-oxides
Assignee: Horizons Research Inc
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Filing: 1966-04-22
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Granted: 1969-12-02
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Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 Eugene Wainer
- 👤 John E Shirey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:43
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/675; G03C1/72; G03C1/73; G03C1/732
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |