Patent US3610131A successfully refreshed from Google Patents.
US3610131A
Expired / Lapsed
US
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Machine for liquid treatment of photographic films or the like
Assignee: Agfa Gevaert AG
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Filing: 1968-06-17
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Granted: 1971-10-05
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Expires: 1988-06-17
Abstract
Abstract A DEVELOPING MACHINE FOR EXPOSED PHOTOGRAPHIC FILM HAS A SERIES OF TANKS EACH OF WHICH ACCOMMODATES A CHAMBER CONSISTING OF UPPER AND LOWER CONTAINERS DEFINING BETWEEN THEMSELVES A CHANNEL WHEREIN THE FILMS ADVANCE DURING TRAVEL THROUGH THE RESPECTIVE TANK. THE CONTAINERS HAVE ORIFICES WHICH DISCHARGE LIQUID INTO THE RESPECTIVE CHANNELS IN SUCH A WAY THAT THE LIQUID FLOWS COUNTER TO THE DIRECTION OF FILM TRAVEL AND FORMS STREAMS. AT BOTH SIDES OF FILMS. THE ORIFICES ARE CIRCULAR HOLES OR ELONGATED SLITS AND THEIR CROSS-SECTIONAL AREA MAY BE FIXED OR ADJUSTABLE. THE ORIFICES ARE ADJACENT TO THE FILM DISCHARGING ENDS OF THE RESPECTIVE CHANNELS.
Inventors
- 👤 Hans-Dieter Frick
- 👤 Hans-Peter Huber
- 👤 Peter Dawidowitsch
- 👤 Ferdinand Leonhard Schouteden
- 👤 Franz Kocourek
- 👤 Gerhard Posch
- 👤 Wolfgang Viehrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:26
CPC Classifications
G; G03; G03D; G03D5/00; G03D5/04
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |