Patent US3150977A successfully refreshed from Google Patents.
US3150977A
Expired / Lapsed
US
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Light-sensitive photographic materials
Assignee: Gevaert Photo Producten NV
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Filing: 1960-12-21
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Granted: 1964-09-29
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Hart Rene Maurice
- 👤 Thiers Robrecht Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:22
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/02; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
PHOTOGRAPHIC LIGHT-SENSITIVE ELEMENT COMPRISING A SILVER HALIDE EMULSION LAYER IN INTIMATE CONTACT WITH A POLYMER CONSISTING OF RECURRING UNITS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
23 words
PHOTOGRAPHIC LIGHT-SENSITIVE ELEMENT COMPRISING A SILVER HALIDE EMULSION LAYER IN INTIMATE CONTACT WITH A POLYMER CONSISTING OF RECURRING UNITS OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2467832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |