Patent US3796575A successfully refreshed from Google Patents.
US3796575A
Expired / Lapsed
US
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Color-photographic proofing process
Assignee: Ilford Imaging Switzerland GmbH
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Filing: 1971-07-14
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Granted: 1974-03-12
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Expires: 1991-07-14
Abstract
Abstract A PROCESS FOR THE MANUFACTURE OF SCREENED COLORED POSITIVE DIRECT-VIEWING IMAGES, WHICH IN THE PRINTING INDUSTRY PERMIT THE RAPID DETECTION OF THE MATCHING OF THE COMPONENT PRINT POSITIVES WHICH THE FINAL PRINTED PRODUCT WILL SHOW IS DISCLOSED.
Inventors
- 👤 H Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/28; G03F; G03F3/00; G03F3/10; G03F3/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |