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US3792489A Expired / Lapsed US ⏱️ 0.0 years remaining

Frame for processing photographic cut sheet film

Assignee: Individual
•
Filing: 1973-01-19
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Granted: 1974-02-12
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Expires: 1993-01-19
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Abstract

Abstract For developing and washing cut sheet film a frame is provided having a generally planar base and four side walls that are separated from one another at their corners. Partitions divide the frame into compartments, one for each sheet to be processed. The base has a plurality of apertures, one for each compartment; and the compartments are slightly wider and longer than the film sheets to permit some very limited movement of the sheets in the compartments; but the walls and the partitions are of a height to retain the film during processing. In use, the frame with the film sheets therein is dipped in a conventional tray containing developer, or water or other processing liquid and moved primarily laterally to cause the liquid to flow into and out of the corners of the frame and between compartments and under and over the sheets therein.

Inventors

  • 👤 H Jelinek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 21:31
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/04; G03D13/00; G03D13/02; G03D13/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 149 words
A frame for processing cut photographic film comprising a generally planar, rectangular shaped base plate having at least two apertures therein, four side walls extending from said base plate perpendicular thereto and defining a generally rectangular shaped container, and a partition between each two apertures extending from said base plate perpendicular thereto of approximately the same height as said side walls but being separated from the side walls and defining with said side walls a plurality of rectangularly shaped compartments, one for each aperture, said walls being beveled at their ends to provide openings between adjacent walls through which liquid can flwo into and out of the frame, and said partitions being removable plastic ribbons whose ends are passed through openings in the base plate under the base plate and up through other openings in the base plate and rest on the base plate to secure them in position.
Claim 2
Dependent Claim 149 words
A frame for processing cut photographic film comprising a generally planar, rectangular shaped base plate having at least two apertures therein, four side walls extending from said base plate perpendicular thereto and defining a generally rectangular shaped container, and a partition between each two apertures extending from said base plate perpendicular thereto of approximately the same height as said side walls but being separated from the side walls and defining with said side walls a plurality of rectangularly shaped compartments, one for each aperture, said walls being beveled at their ends to provide openings between adjacent walls through which liquid can flwo into and out of the frame, and said partitions being removable plastic ribbons whose ends are passed through openings in the base plate under the base plate and up through other openings in the base plate and rest on the base plate to secure them in position.

References Cited (Backward Citations)

US503144A Cited
US546347A Cited
US773358A Cited
US961808A Cited
US2489548A Cited
US3561960A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-11 1977-08-13 1978-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-11 1981-08-13 1982-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-11 1985-08-13 1986-02-12 $7700.00 Window Closed / Lapsed

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