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US3331301A Expired / Lapsed US ⏱️ 0.0 years remaining

Film processing magazine

Assignee: Mark Systems Inc
•
Filing: 1964-09-18
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Granted: 1967-07-18
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Expires: 1984-09-18
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Abstract

No abstract record available.

Inventors

  • 👤 Harry N Dieffenbach
  • 👤 Arthur L Nields

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 05:16
CPC Classifications
G; G03; G03D; G03D9/00; G03D11/00

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 222 words
A FILM PROCESSING MAGAZINE OF THE TYPE ADAPTED TO SPOOL A PHOTOGRAPHIC FILM AND A DEVELOPER IMPREGNATED MAT TOGETHER ON A COMMON SPOOL, COMPRISING A ROLL OF MAT MATERIAL, MEANS FOR MOUNTING SAID ROLL WITHIN SAID MAGAZINE, MEANS FOR FEEDING FILM IN LIGHT-TIGHT INTEGRITY FROM A CAMERA INTO SAID MAGAZINE, A SPOOL TO RECEIVE SAID MAT AND SAID FILM, MEANS FOR ROTATING SAID SPOOL, SAID MAT AND SAID FILM BEING DISPOSED WITH THEIR RESPECTIVE EMULSION SIDE IN FACE TO FACE RELATIONSHIP, A PRESSURE ROLLER, MEANS MOUNTING SAID PRESSURE ROLLER FOR ROTATION IN THE AXIS PARALLEL WITH THE AXIS OF ROTATION OF SAID TAKEUP SPOOL, MEANS POSITIONING SAID PRESSURE ROLLER AGAINST SAID TAKE-UP SPOOL AT THE POINT OF UNION OF SAID MAT AND FILM, MEANS MAINTAINING CONSTANT PRESSURE TO SAID PRESSURE ROLLER AGAINST SAID TAKE-UP SPOOL, MEANS FORMULATING A LOOP OF FILM TO DAMPEN IRREGULARITIES OF FILM TRAVEL INTO SAID MAGAZINE AND MAINTAIN THE TENSION OF SAID FILM LEADING TO SAID TAKE-UP REEL AT A CONSTANT LEVEL, MEANS TENSIONING SAID MAT REEL TO PROVIDE A CONSTANT TENSION OF MAT BEING DRAWN ONTO SAID TAKE-UP SPOOL, COOLING AND HEATING MEANS MOUNTED WITHIN SAID MAGAZINE, MEANS TO SENSE THE TEMPERATURE OF SAID MAGAZINE AND SAID TEMPERATURE SENSING BEING ADAPTED MEANS TO CAUSE SAID HEATING AND COOLING MEANS TO BRING THE TEMPERATURE WITHIN A PREDETERMINED RANGE.

References Cited (Backward Citations)

CA631810A Cited
US2551892A Cited
US2945429A Cited
US2932753A Cited
US3041952A Cited
US3177790A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-17 1971-01-16 1971-07-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-17 1975-01-16 1975-07-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-17 1979-01-16 1979-07-18 $7700.00 Window Closed / Lapsed

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