US3264110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymethine dyes
Assignee: Gevaert Photo Producten NV
•
Filing: 1964-01-30
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Granted: 1966-08-02
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Expires: 1984-01-30
Abstract
No abstract record available.
Inventors
- 👤 Depoorter Henri
- 👤 Libeer Marcel Jan
- 👤 Gerrit Godfried Van Mierlo
- 👤 Nys Jean Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/10; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/08; C07D235/14; C07D235/20; C09B23/02; C09B23/06; C09B23/105; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/28; G03C1/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A LIGHT-SENSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING AS A SENSITIZING DYE A CYANINE DYE SALT HAVING THE FORMULA:
Claim 2
Dependent Claim
18 words
A LIGHT-SENSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING AS A SENSITIZING DYE A CYANINE DYE SALT HAVING THE FORMULA:
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |