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US3608455A Expired / Lapsed US ⏱️ 0.0 years remaining

System for processing a strip of photographic material

Assignee: Polaroid Corp
•
Filing: 1969-04-04
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Granted: 1971-09-28
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Expires: 1989-04-04
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Abstract

Abstract A MOTION PICTURE FILM PROCESSING SYSTEM EMPLOYING A DISPENSING CONTAINER HAVING AN APPLICATOR THROUGH WHICH PROCESSING FLUID MAY BE EXPRESSED ONTO A STRIP OF EXPOSED PHOTOGRAPHIC MATERIAL AS THE STRP OF MATERIAL IS DRAWN THEREACROSS. PROCESSING FLUID IS INITIALLY STORED IN A COLLAPSIBLE CONTAINER HAVING A WEAKENED PORTION ADAPTED TO RUPTURE RESPONSIVE TO A PREDETERMINED COMPRESSIVE FORCE. A FLUID FEEDING DEVICE COMMUNICATES WITH A RESERVOIR CHAMBER OF THE DISPENSING CONTAINER THROUGH AN EXIT ORIFICE PROVIDED IN ONE OF ITS WALLS AND ALSO HAS AN ENTRANCE PORT CONNECTED TO THE WEAKENED PORTION OF THE COLLAPSIBLE CONTAINER. THE RESERVOIR CHAMBER IS AT LEAST EQUAL IN CAPACITY TO THE COLLAPSIBLE CONTAINER. THIS SYSTEM CAN ADVANTAGEOUSLY BE EMPLOYED IN A COMPACT MULTIPURPOSE FILM HANDLING CASSETTE, HAVING A REMOVABLE COVER PLATE ADJACENT THE COLLAPSIBLE CONTAINER-FLUID FEEDING DEVICE, WHICH IS ADAPTED TO BE MOUNTED BOTH WITHIN A CAMERA AND A UNIQUE PROCESSOR-PROJECTOR UNIT. WITH THE AFORESAID COVER PLATE REMOVED, A ROLLER OF THE PROCESSORPROJECTOR UNIT PROGRESSIVELY APPLIES A COMPRESSIVE FORCE AGAINST THE ENTIRE LENGTH OF THE COLLAPSIBLE CONTAINER-FLUID FEEDING DEVICE ASSEMBLY WHEREBY THE PROCESSING FLUID IS EXPELLED FROM THE COLLAPSIBLE CONTAINER INTO THE RESERVOIR CHAMBER OF THE DISPENSING CONTAINER.

Inventors

  • 👤 Rogers B Downey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 23:05
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265

Claims Analysis

Total Claims: 0
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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) 1974-09-27 1975-03-29 1975-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-09-27 1979-03-29 1979-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-09-27 1983-03-29 1983-09-28 $7700.00 Window Closed / Lapsed

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