US3282190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic colour printing
Assignee: Ilford Imaging UK Ltd
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Filing: 1963-10-18
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Granted: 1966-11-01
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Neale Denis Manktelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:46
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD OF MAKING FROM MULTICOLOUR TRANSPARENCIES PRINTS ON PHOTOGRAPHIC MATERIAL CONTAINING AT LEAST TWO COMPONENTS SELECTIVELY SENSITIVE TO TWO DIFFERENT SPECTRAL BANDS, WHICH COMPRISES ALLOWING PRINTING LIGHT TO PASS TO A PHOTOCELL THROUGH A DIDYMIUM GLASS FILTER THEREBY RESTRICTING THE RESPONSE OF THE PHOTOCELL TO THE SAID SPECTRAL BANDS; CYCLICALLY INTERPOSING IN THE PATH OF SAID LIGHT A FILTER PASSING ONE OF SAID SPECTRAL BANDS, BUT NOT THE OTHER, TO SAID PHOTOCELL; PASSING CURRENT FROM SAID
Claim 2
Independent Claim
77 words
A METHOD OF MAKING FROM MULTICOLOUR TRANSPARENCIES PRINTS ON PHOTOGRAPHIC MATERIAL CONTAINING AT LEAST TWO COMPONENTS SELECTIVELY SENSITIVE TO TWO DIFFERENT SPECTRAL BANDS, WHICH COMPRISES ALLOWING PRINTING LIGHT TO PASS TO A PHOTOCELL THROUGH A DIDYMIUM GLASS FILTER THEREBY RESTRICTING THE RESPONSE OF THE PHOTOCELL TO THE SAID SPECTRAL BANDS; CYCLICALLY INTERPOSING IN THE PATH OF SAID LIGHT A FILTER PASSING ONE OF SAID SPECTRAL BANDS, BUT NOT THE OTHER, TO SAID PHOTOCELL; PASSING CURRENT FROM SAID
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |