US3195435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparing spirit duplicating masters
Assignee: Gevaert Photo Producten NV
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Filing: 1962-12-17
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Granted: 1965-07-20
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Stievenart Emiel Frans
- 👤 Deconinck Hugo Frans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:31
CPC Classifications
G; G03; G03D; G03D9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
APPARATUS FOR PHOTOGRAPHICALLY PREPARING A DUPLICATING MASTER ADAPTED FOR MAKING COPIES IN A SPIRIT DUPLICATING PROCESS, SAID APPARATUS COMPRISING A TANK FOR CONTAINING A DEVELOPING LIQUID, SAID TANK HAVING AN ELONGATED APERTURE ADJACENT ONE END ABOVE THE LEVEL OF LIQUID THEREIN FOR INGRESS AND EGRESS OF AN EXPOSED SHEET OF PHOTOGRAPHIC MATERIAL TO AND FROM SAID TANK; A COMPARTMENT EXTENDING GENERALLY ABOVE SAID TANK FOR RECEIVING AND MAINTAINING OUT OF CONTACT WITH SAID LIQUID A DYESTUFF SHEET TO BE CONTACTED WITH THE EXPOSED AND DEVELOPED PHOTOGRAPHIC SHEET, SAID COMPARTMENT HAVING AN ELONGATED APERTURE ADJACENT AND PARALLEL TO SAID TANK APERTURE; A PAIR OF COOPERATING PRESSURE ROLLERS DISPOSED PROXIMATE SAID APERTURES, ONE OF SAID ROLLERS BEING DISPLACEABLE FROM THE OTHER TO EXPOSE SAID APERTURES FOR INTRODUCTION OF SAID SHEETS INTO THE TANK AND COMPARTMENT RESPECTIVELY, SAID ROLLERS OTHERWISE BEING BIASED TOGETHER FOR PRESSING SAID
Claim 2
Dependent Claim
143 words
APPARATUS FOR PHOTOGRAPHICALLY PREPARING A DUPLICATING MASTER ADAPTED FOR MAKING COPIES IN A SPIRIT DUPLICATING PROCESS, SAID APPARATUS COMPRISING A TANK FOR CONTAINING A DEVELOPING LIQUID, SAID TANK HAVING AN ELONGATED APERTURE ADJACENT ONE END ABOVE THE LEVEL OF LIQUID THEREIN FOR INGRESS AND EGRESS OF AN EXPOSED SHEET OF PHOTOGRAPHIC MATERIAL TO AND FROM SAID TANK; A COMPARTMENT EXTENDING GENERALLY ABOVE SAID TANK FOR RECEIVING AND MAINTAINING OUT OF CONTACT WITH SAID LIQUID A DYESTUFF SHEET TO BE CONTACTED WITH THE EXPOSED AND DEVELOPED PHOTOGRAPHIC SHEET, SAID COMPARTMENT HAVING AN ELONGATED APERTURE ADJACENT AND PARALLEL TO SAID TANK APERTURE; A PAIR OF COOPERATING PRESSURE ROLLERS DISPOSED PROXIMATE SAID APERTURES, ONE OF SAID ROLLERS BEING DISPLACEABLE FROM THE OTHER TO EXPOSE SAID APERTURES FOR INTRODUCTION OF SAID SHEETS INTO THE TANK AND COMPARTMENT RESPECTIVELY, SAID ROLLERS OTHERWISE BEING BIASED TOGETHER FOR PRESSING SAID
References Cited (Backward Citations)
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Cited
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US2775933A
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US3099208A
Cited
US3152529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |