US3130655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus
Assignee: 3M Co
•
Filing: 1963-01-21
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Granted: 1964-04-28
•
Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Donald K Meyer
- 👤 Arthur G Ostrem
- 👤 George J Pollman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:44
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03G; G03G15/00; G03G15/01; G03G15/0142; G03G17/00; G03G17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
AN AUTOMATIC, PROGRAMMED COMBINATION ENLARGER AND PROCESSOR APPARATUS FOR RAPIDLY PRODUCING PRINTS ON A PHOTOSENSITIVE SHEET HAVING A PHOTOCONDUCTIVE COATING ON AN ELECTRICALLY CONDUCTIVE BACKING COMPRISING IN COMBINATION: PROJECTION MEANS FOR SEPARATLEY AND SUCCESSIVELY PROJECTING ONTO SAID SHEET IN ACCURATE REGISTRY A SERIES OF MONOCHROMATIC LIGHT-IMAGES; TANK MERANS FOR SUPPLYING A SERIES OF DYE BATHS, EACH OF SAID TANK MEANS INCLUDING ELECTRODE MEANS FOR ESTABLISHING ANODIC CONTACT WITH THE CORRESPONDING DYE BATH; SUPPORT MEANS FOR HOLDING SAID SHEET IN FOCUS AND REGISTRY WITH SAID PROJECTION MEANS DURING EXPOSURE TO EACH OF SAID LIGHT-IMAGES AND FOR ESTABLISHING CATHODIC CONTACT TO THE CONDUCTIVE BACKING; DIPPING MEANS FOR SUCCESSIVELY IMMERSING SAID SHEET HELD IN SAID SUPPORT MEANS IN EACH OF SAID DYE BATHS FOR ELECTROLYTIC DEPOSITION OF A CORRESPONDING DYE AT A LIGHT-STRUCK AREAS OF SAID SHEET AND FOR THEN REMOVING SAID SHEET FROM CONTACT WITH SAID DYE BATH; RINSING MEANS FOR APPLYAING A NON-ABRADING UNIFORM FLOW OF WATER TO SAID SHEET AND SAID SUPPORT MEANS AND DARK ADAPTING THE PHOTCONDUCTIVE COATING AFTER ITS REMOVAL FROM SAID DYE BATH; NON-ABRAD-
Claim 2
Dependent Claim
177 words
AN AUTOMATIC, PROGRAMMED COMBINATION ENLARGER AND PROCESSOR APPARATUS FOR RAPIDLY PRODUCING PRINTS ON A PHOTOSENSITIVE SHEET HAVING A PHOTOCONDUCTIVE COATING ON AN ELECTRICALLY CONDUCTIVE BACKING COMPRISING IN COMBINATION: PROJECTION MEANS FOR SEPARATLEY AND SUCCESSIVELY PROJECTING ONTO SAID SHEET IN ACCURATE REGISTRY A SERIES OF MONOCHROMATIC LIGHT-IMAGES; TANK MERANS FOR SUPPLYING A SERIES OF DYE BATHS, EACH OF SAID TANK MEANS INCLUDING ELECTRODE MEANS FOR ESTABLISHING ANODIC CONTACT WITH THE CORRESPONDING DYE BATH; SUPPORT MEANS FOR HOLDING SAID SHEET IN FOCUS AND REGISTRY WITH SAID PROJECTION MEANS DURING EXPOSURE TO EACH OF SAID LIGHT-IMAGES AND FOR ESTABLISHING CATHODIC CONTACT TO THE CONDUCTIVE BACKING; DIPPING MEANS FOR SUCCESSIVELY IMMERSING SAID SHEET HELD IN SAID SUPPORT MEANS IN EACH OF SAID DYE BATHS FOR ELECTROLYTIC DEPOSITION OF A CORRESPONDING DYE AT A LIGHT-STRUCK AREAS OF SAID SHEET AND FOR THEN REMOVING SAID SHEET FROM CONTACT WITH SAID DYE BATH; RINSING MEANS FOR APPLYAING A NON-ABRADING UNIFORM FLOW OF WATER TO SAID SHEET AND SAID SUPPORT MEANS AND DARK ADAPTING THE PHOTCONDUCTIVE COATING AFTER ITS REMOVAL FROM SAID DYE BATH; NON-ABRAD-
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |