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US3756528A Expired / Lapsed US ⏱️ 0.0 years remaining

Roll film for double magazine

Assignee: Fujifilm Holdings Corp
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Filing: 1971-09-07
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Granted: 1973-09-04
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Expires: 1991-09-07
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Abstract

Abstract A roll film assembly for a double magazine having spool holders of identical construction includes a folded paper connecting strip having a first adhesive covered portion adjacent the fold line for fixing the paper strip to one of the spools and a second adhesive covered portion at the edge of the folded paper for sandwiching an unexposed film therebetween. Aligned perforations within each layer of the folded paper strip intermediate of the first and second adhesive covered portions permit the exposed film to be separated from the supply spool and further permit the leading end of a new roll of unexposed film to be inserted between the reminent portions of the layers of the folded paper strip for facilitating the attachment of new film thereto with this section of the magazine then acting as the take-up spool for the film roll.

Inventors

  • 👤 H Ohmura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 23:14
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B19/00; G03B19/02; G03B19/04; G03B2206/00

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 173 words
In a roll film construction for a double magazine having two sections of identical construction with the roll film passing from one section to another, said roll film and said magazine each carrying a spool for reelably holding film, the improvement comprising: an intermediate paper connection strip folded at its center to form two similar layers, a first adhesive covered portion adjacent the center fold line facing outwardly for fixing said paper strip to one of said spools, and a pair of secOnd adhesive covered portions adjacent the ends of said strip on the facing surfaces of said layers for attachement to respective sides of the end of said film, and a row of perforations across each layer intermediate said first and second adhesive covered portions to readily sever the film from said one spool after exposure and permit access to said first adhesive covered portion of said paper strip attached to said one spool to permit attachment of the end of a new film to said one spool from yet another spool.
Claim 2
Dependent Claim 173 words
In a roll film construction for a double magazine having two sections of identical construction with the roll film passing from one section to another, said roll film and said magazine each carrying a spool for reelably holding film, the improvement comprising: an intermediate paper connection strip folded at its center to form two similar layers, a first adhesive covered portion adjacent the center fold line facing outwardly for fixing said paper strip to one of said spools, and a pair of secOnd adhesive covered portions adjacent the ends of said strip on the facing surfaces of said layers for attachement to respective sides of the end of said film, and a row of perforations across each layer intermediate said first and second adhesive covered portions to readily sever the film from said one spool after exposure and permit access to said first adhesive covered portion of said paper strip attached to said one spool to permit attachment of the end of a new film to said one spool from yet another spool.
Claim 3
Dependent Claim 25 words
The roll film construction as claimed in claim 1, wherein said first adhesive covered portion is partially cutout to form an adhesive covered tab portion.

References Cited (Backward Citations)

DE865070C Cited
US2900868A Cited
US3084884A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-03 1977-03-05 1977-09-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-03 1981-03-05 1981-09-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-03 1985-03-05 1985-09-04 $7700.00 Window Closed / Lapsed

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