US3401038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazotype materials containing polycyclic light-sensitive fluorene diazonium salts
Assignee: GAF Corp
•
Filing: 1965-02-19
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Granted: 1968-09-10
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Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 Panasik Theodore
- 👤 Robert J Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/54; C; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |