US3365295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra-violet absorbing filters
Assignee: Agfa Gevaert NV
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Filing: —
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Granted: 1968-01-23
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Expires: 1985-01-23
Abstract
No abstract record available.
Inventors
- 👤 Fritz Nittel
- 👤 Hans Ulrich
- 👤 Heinz Meckl
- 👤 Hans-Georg Kleppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:06
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/54; C08; C08K; C08K5/00; C08K5/36; C08K5/45; C08K5/46; C08K5/47; G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A PHOTOGRAPHIC ELEMENT COMPRISING AT LEAST ONE SUPPORTED PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER AND A LAYER CONTAINING AN EFFECTIVE AMOUNT OF AN ULTRA-VIOLET ABSORBING COMPOUND OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
29 words
A PHOTOGRAPHIC ELEMENT COMPRISING AT LEAST ONE SUPPORTED PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER AND A LAYER CONTAINING AN EFFECTIVE AMOUNT OF AN ULTRA-VIOLET ABSORBING COMPOUND OF THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
19 words
A SUPPORTED ULTRA-VIOLET ABSORBING FILTER LAYER CONTAINING AN EFFECTIVE AMOUNT OF AN ULTRA-VIOLET ABSORBING COMPOUND OF THE FOLLOWING FORMULA:
Claim 4
Dependent Claim
19 words
A SUPPORTED ULTRA-VIOLET ABSORBING FILTER LAYER CONTAINING AN EFFECTIVE AMOUNT OF AN ULTRA-VIOLET ABSORBING COMPOUND OF THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2798067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |