Patent US3595652A successfully refreshed from Google Patents.
US3595652A
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Diffusion transfer product and process having siliceous material and opacity providing material in the emulsion
Assignee: Polaroid Corp
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Filing: 1966-01-11
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Granted: 1971-07-27
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Expires: 1986-01-11
Abstract
Abstract PHOTOGRAPHIC PRODUCT FOR FORMING A COMPOSITE PRINT VIEWABLE AS A POSITIVE REFLECTION PRINT, THE PRODUCT INCLUDING A LIGHT-SENSITIVE SILVER HALIDE EMULSION AND A LIGHT OPACITY-PROVIDING MATERIAL IN THE SAME LAYER AS THE EMULSION OR IN AN OVERLYING LYER, WHEREIN THE LAYER CONTAINING THE OPACITY-PROVIDING MATERIAL FURTHER INCLUDES A SILICEOUS MATERIAL.
Inventors
- 👤 Leonard C Farney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:34
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/40; G03C5/48; G03C8/00; G03C8/42; G03C8/44; G03C8/48; G03C8/52
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |