US3525618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazotype film materials
Assignee: Novartis AG
•
Filing: 1965-11-29
•
Granted: 1970-08-25
•
Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 Max Keller
- 👤 Theodor Haefeli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:13
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; G03C1/52; G03C1/61
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2245628A
Cited
US2378583A
Cited
GB643042A
Cited
US3069268A
Cited
US3166422A
Cited
NL6413561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |