Patent US3100704A successfully refreshed from Google Patents.
US3100704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic materials containing carbodhmides
Assignee: GAF Chemicals Corp
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Filing: 1958-07-24
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Granted: 1963-08-13
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Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Robert F Coles
- 👤 Levine Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:18
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A SILVER HALIDE EMULSION ADAPTED TO FORM A HARDENED LAYER COMPRISING A GELATIN SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING (A) A MEMBER SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
27 words
A SILVER HALIDE EMULSION ADAPTED TO FORM A HARDENED LAYER COMPRISING A GELATIN SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING (A) A MEMBER SELECTED FROM THE GROUP CONSISTING OF:
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |