US3287137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-developable silver halide emulsions
Assignee: Eastman Kodak Co
•
Filing: 1964-10-23
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Granted: 1966-11-22
•
Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/49; G03C1/06; G03C1/08; G03C1/10; G03C1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A LIGHT-DEVELOPABLE, DIRECT-PRINT SILVER HALIDE EMULSION CONTAINING A NITROGEN-CONTAINING HALOGEN ACCEPTOR AND WHEREIN THE SILVER HALIDE GRAINS OF SAID EMULSION HAVE BEEN FORMED IN THE PRESENCE OF LEAD IONS, SAID HALOGEN ACCEPTOR HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
41 words
A LIGHT-DEVELOPABLE, DIRECT-PRINT SILVER HALIDE EMULSION CONTAINING A NITROGEN-CONTAINING HALOGEN ACCEPTOR AND WHEREIN THE SILVER HALIDE GRAINS OF SAID EMULSION HAVE BEEN FORMED IN THE PRESENCE OF LEAD IONS, SAID HALOGEN ACCEPTOR HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
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US3033692A
Cited
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US3148987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |