US3345169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic process
Assignee: Eastman Kodak Co
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Filing: 1965-05-25
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Granted: 1967-10-03
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Hugh G Mcguckin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:46
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/24; G03C8/26; G03C8/28
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
56 words
A PHOTOGRAPHIC ELEMENT FOR USE IN THE PHOTOGRAPHIC DIFFUSION TRANSFER PROCESS COMPRISING A SUPPORT HAVING THEREON SILVER PRECIPITATING NUCLEUI REACTED WITH AN IONIC COMPOUND COMPRISING A NOBLE METAL SELECTED FROM THE CLASS CONSISTING OF PALLADIUM, PLATINUM AND GOLD AND MIXTURES THEREOF IN WHICH THE NOBLE METAL IS OTHER THAN ANY METAL COMPRISING SAID SILVER PRECIPITATING NUCLEI.
Claim 2
Dependent Claim
56 words
A PHOTOGRAPHIC ELEMENT FOR USE IN THE PHOTOGRAPHIC DIFFUSION TRANSFER PROCESS COMPRISING A SUPPORT HAVING THEREON SILVER PRECIPITATING NUCLEUI REACTED WITH AN IONIC COMPOUND COMPRISING A NOBLE METAL SELECTED FROM THE CLASS CONSISTING OF PALLADIUM, PLATINUM AND GOLD AND MIXTURES THEREOF IN WHICH THE NOBLE METAL IS OTHER THAN ANY METAL COMPRISING SAID SILVER PRECIPITATING NUCLEI.
Claim 3
Dependent Claim
35 words
A PHOTOGRAPHIC ELEMENT OF CLAIM 1 IN WHICH THE SAID NUCLEI ARE SELECTED FROM THE CLASS CONSISTING OF CAREY LEA SILVER, THE SULFIDES OF CADMIUM, COBALT, COPPER, LEAD, NICKEL, SILVER, AND ZINC, AND MIXTURES THEREOF.
References Cited (Backward Citations)
US2698237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |