Patent US3230089A successfully refreshed from Google Patents.
US3230089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid photographic developing
Assignee: Bell and Howell Co
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Filing: 1962-02-21
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Granted: 1966-01-18
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 Charles F Robinson
- 👤 John H Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:10
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03C; G03C5/00; G03C5/26; G03C5/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A CONTINUOUS PROCESS FOR DEVELOPING A RECORD PAPER HAVING AN EXPOSED SILVER HALIDE DEVELOP-OUT PHOTOSENSITIVE EMULSION SUPPORTED ON A SURFACE THEREOF WHICH COMPRISES CONTINUOUSLY APPLYING TO SUCCESSIVE PORTIONS OF THE EMULSION A FILM OF PHOTOGRAPHIC DEVELOPING SOLUTION NOT IN EXCESS OF ABOUT 0.0005 INCH IN THICKNESS AND IMMEDIATELY THEREAFTER, PASSING THE PAPER OVER A HEATED SURFACE WITH THE FACE OF THE PAPER OPPOSITE THE EMULSION IN CONTACT THEREWITH AND MAINTAINING THE HEATED SURFACE AT A TEMPERATURE IN EXCESS OF APPROXIMATELY 90*C.
Claim 2
Dependent Claim
81 words
A CONTINUOUS PROCESS FOR DEVELOPING A RECORD PAPER HAVING AN EXPOSED SILVER HALIDE DEVELOP-OUT PHOTOSENSITIVE EMULSION SUPPORTED ON A SURFACE THEREOF WHICH COMPRISES CONTINUOUSLY APPLYING TO SUCCESSIVE PORTIONS OF THE EMULSION A FILM OF PHOTOGRAPHIC DEVELOPING SOLUTION NOT IN EXCESS OF ABOUT 0.0005 INCH IN THICKNESS AND IMMEDIATELY THEREAFTER, PASSING THE PAPER OVER A HEATED SURFACE WITH THE FACE OF THE PAPER OPPOSITE THE EMULSION IN CONTACT THEREWITH AND MAINTAINING THE HEATED SURFACE AT A TEMPERATURE IN EXCESS OF APPROXIMATELY 90*C.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |