Patent US3335008A successfully refreshed from Google Patents.
US3335008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic elements containing ferrocene derivative and method of processing
Assignee: Eastman Kodak Co
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Filing: 1964-04-02
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Granted: 1967-08-08
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Dubosc Jean-Pierre Cami Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
C; C07; C07F; C07F17/00; C07F17/02; G; G03; G03C; G03C1/00; G03C1/675; G03C1/72; G03C1/73; G03C1/735; G03F; G03F7/00; G03F7/004; G03F7/027
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT HAVING COATED THEREON A LIGHT-SENSITIVE FERROCENE DERIVATIVE HAVING THE FORMULA
Claim 2
Dependent Claim
16 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT HAVING COATED THEREON A LIGHT-SENSITIVE FERROCENE DERIVATIVE HAVING THE FORMULA
Claim 3
Dependent Claim
72 words
THE PROCESS WHICH COMPRISES EXPOSING TO AN IMAGE A PHOTOGRAPHIC ELEMENT AS DESCRIBED IN CLAIM 1 AND FORMING A FERROCENE DERIVATIVE IMAGE IN THE AREAS OF EXPOSURE THAT IS SUBSTANTIALLY LESS SOLUBLE IN POLAR SOLVENTS THAN THE FERROCENE DERIVATIVE IN UNEXPOSED AREAS, AND THEREAFTER TREATING THE EXPOSED PHOTOGRAPHIC ELEMENT WITH A POLAR SOLVENT TO REMOVE FERROCENE DERIVATIVE IN UNEXPOSED IMAGE AREAS AND RETAIN EXPOSED IMAGE AREAS OF FERROCENE DERIVATIVE ON THE SUPPORT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |