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US3222170A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic process for forming a photosensitive article with a processing solution spread thereon

Assignee: Polaroid Corp
•
Filing: 1960-09-08
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Granted: 1965-12-07
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Expires: 1980-09-08
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Abstract

No abstract record available.

Inventors

  • 👤 Vaito K Eloranta

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 06:08
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; B; B27; B27B; B27B3/00; B27B3/02; B27B3/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 219 words
A METHOD OF DISTRIBUTING A PHOTOGRAPHIC LIQUID IN CONTACT WITH AN AREA OF A FIRST PHOTOGRAPHIC SHEET TO PRODUCE A COMPOSITE PHOTOGRAPHIC STRUCTURE COMPRISING A PLURALITY OF SUPERPOSED LAYERS, AT LEAST ONE OF SAID LAYERS INCLUDING SAID LIQUID AND AT LEAST ONE OF SAID LAYERS INCLUDING A PHOTOGRAPHIC IMAGE-RECORDING MATERIAL, SAID METHOD COMPRISING: SUPERPOSING SAID FIRST SHEET WITH A SECOND SHEET; DISPENSING A QUANTITY OF SAID PROCESSING LIQUID FROM A CONTAINER LOCATED BETWEEN SAID SHEETS IN A MASS BETWEEN SAID SHEETS ADJACENT AN END EDGE OF SAID AREA; MOVING SAID SHEETS AND MASS OF LIQUID RELATIVE TO MEANS FOR APPLYING COMPRESSIVE PRESSURE TO SAID SHEETS, IN A DIRECTION OPPOSITE THE DIRECTION OF DISTRIBUTION OF SAID LIQUID IN CONTACT WITH SAID AREA; DURING MOVEMENT OF SAID SHEETS, APPLYING COMPRESSIVE PRESSURE TO A FIRST TRANSVERSE SECTION OF SAID SUPERPOSED SHEETS AHEAD OF SAID MASS OF LIQUID TO DISTRIBUTE SAID LIQUID IN CONTACT WITH SAID AREA AND CAUSE SAID LIQUID TO FLOW IN A DIRECTION OPPOSITE THE DIRECTION OF MOVEMENT OF SAID SHEETS TOWARD THE OPPOSITE END EDGE OF SAID AREA; AND, SIMULTANEOUSLY APPLYING COMPRESSIVE PRESSURE TO A SECOND TRANSVERSE SECTION OF SAID SUPERPOSED SHEETS BEHIND SAMD MASS OF LIQUID TO RESTTICT SAID FLOW OF SAID LIQUID AND CAUSE SAID LIQUID TO FLOW TRNASVERSELY OF SAID DIRECTION OF MOVEMENT OF SAID SHEETS.
Claim 2
Independent Claim 219 words
A METHOD OF DISTRIBUTING A PHOTOGRAPHIC LIQUID IN CONTACT WITH AN AREA OF A FIRST PHOTOGRAPHIC SHEET TO PRODUCE A COMPOSITE PHOTOGRAPHIC STRUCTURE COMPRISING A PLURALITY OF SUPERPOSED LAYERS, AT LEAST ONE OF SAID LAYERS INCLUDING SAID LIQUID AND AT LEAST ONE OF SAID LAYERS INCLUDING A PHOTOGRAPHIC IMAGE-RECORDING MATERIAL, SAID METHOD COMPRISING: SUPERPOSING SAID FIRST SHEET WITH A SECOND SHEET; DISPENSING A QUANTITY OF SAID PROCESSING LIQUID FROM A CONTAINER LOCATED BETWEEN SAID SHEETS IN A MASS BETWEEN SAID SHEETS ADJACENT AN END EDGE OF SAID AREA; MOVING SAID SHEETS AND MASS OF LIQUID RELATIVE TO MEANS FOR APPLYING COMPRESSIVE PRESSURE TO SAID SHEETS, IN A DIRECTION OPPOSITE THE DIRECTION OF DISTRIBUTION OF SAID LIQUID IN CONTACT WITH SAID AREA; DURING MOVEMENT OF SAID SHEETS, APPLYING COMPRESSIVE PRESSURE TO A FIRST TRANSVERSE SECTION OF SAID SUPERPOSED SHEETS AHEAD OF SAID MASS OF LIQUID TO DISTRIBUTE SAID LIQUID IN CONTACT WITH SAID AREA AND CAUSE SAID LIQUID TO FLOW IN A DIRECTION OPPOSITE THE DIRECTION OF MOVEMENT OF SAID SHEETS TOWARD THE OPPOSITE END EDGE OF SAID AREA; AND, SIMULTANEOUSLY APPLYING COMPRESSIVE PRESSURE TO A SECOND TRANSVERSE SECTION OF SAID SUPERPOSED SHEETS BEHIND SAMD MASS OF LIQUID TO RESTTICT SAID FLOW OF SAID LIQUID AND CAUSE SAID LIQUID TO FLOW TRNASVERSELY OF SAID DIRECTION OF MOVEMENT OF SAID SHEETS.

References Cited (Backward Citations)

US2558858A Cited
US2686716A Cited
US2612449A Cited
US2778269A Cited
US2674532A Cited
US2846309A Cited
US2845850A Cited
US3047387A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-12-06 1969-06-07 1969-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-06 1973-06-07 1973-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-06 1977-06-07 1977-12-07 $7700.00 Window Closed / Lapsed

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