Patent US2524273A successfully refreshed from Google Patents.
Patent US3333088A successfully refreshed from Google Patents.
US3333088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the thermal development of light-sensitive material
Assignee: Chemische Fabriek L Van der Grinten NV
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Filing: 1964-07-14
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Granted: 1967-07-25
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Verbeek Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:07
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN APPARATUS FOR THE THERMAL DEVELOPMENT OF EXPOSED LIGHT-SENSITIVE MATERIAL, COMPRISING, IN COMBINATION WITH MEANS FOR CONVEYING SAID MATERIAL THROUGH A THERMAL DEVELOPMENT ZONE, MEANS INCLUDING AN ELECTRICAL HEATING ELEMENT FOR DELIVERING HEAT TO SAID MATERIAL IN SAID ZONE TO DEVELOP SAID MATERIAL, A FIRST VARIABLY SETTABLE MEANS FOR REGULATING THE SPEED OF TRAVEL OF THE MATERIAL THROUGH SAID ZONE AND A SECOND VARIABLY SETTABLE MEANS FOR REGULATING THE ACTION OF SAID HEAT DELIVERING MEANS SO AS TO CONTROL THE TEMPERATURE TO WHICH THE MATERIAL IS SUBJECTED IN SAID ZONE, CONTROL MEANS CORRELATING THE SETTING OF SAID SECOND REGULATING MEANS TO THE SETTING OF SAID SPEED REGULATING MEANS AND OPERATING UPON A VARIATION OF SAID SPEED TO EFFECT A COMPENSATING VARIATION OF ACTION OF SAID TEMPERATURE HEAT DELIVERING MEANS SO THAT SAID MATERIAL WILL BE HEATED SUITABLY FOR DEVELOPMENT IRRESPECTIVE OF THE DURATION OF ITS TRAVEL THROUGH SAID ZONE.
Claim 2
Independent Claim
149 words
AN APPARATUS FOR THE THERMAL DEVELOPMENT OF EXPOSED LIGHT-SENSITIVE MATERIAL, COMPRISING, IN COMBINATION WITH MEANS FOR CONVEYING SAID MATERIAL THROUGH A THERMAL DEVELOPMENT ZONE, MEANS INCLUDING AN ELECTRICAL HEATING ELEMENT FOR DELIVERING HEAT TO SAID MATERIAL IN SAID ZONE TO DEVELOP SAID MATERIAL, A FIRST VARIABLY SETTABLE MEANS FOR REGULATING THE SPEED OF TRAVEL OF THE MATERIAL THROUGH SAID ZONE AND A SECOND VARIABLY SETTABLE MEANS FOR REGULATING THE ACTION OF SAID HEAT DELIVERING MEANS SO AS TO CONTROL THE TEMPERATURE TO WHICH THE MATERIAL IS SUBJECTED IN SAID ZONE, CONTROL MEANS CORRELATING THE SETTING OF SAID SECOND REGULATING MEANS TO THE SETTING OF SAID SPEED REGULATING MEANS AND OPERATING UPON A VARIATION OF SAID SPEED TO EFFECT A COMPENSATING VARIATION OF ACTION OF SAID TEMPERATURE HEAT DELIVERING MEANS SO THAT SAID MATERIAL WILL BE HEATED SUITABLY FOR DEVELOPMENT IRRESPECTIVE OF THE DURATION OF ITS TRAVEL THROUGH SAID ZONE.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |