US4335948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film retriever
Assignee: Polaroid Corp
•
Filing: 1981-04-06
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Granted: 1982-06-22
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Expires: 2001-04-06
Abstract
Abstract A photographic film assemblage including a film cassette having an exit through which a strip of film may be advanced, a spool rotatably mounted within the cassette, a strip of film coiled about the spool with a leading end thereof adapted to extend to the exterior of the cassette via the exit, and a strip of sheet material having an intermediate section, located between and in engagement with the outermost convolution of film and an interior wall of the cassette, and opposite ends which extend to the exterior of the cassette via the exit. Should the leading end of the film be located within the cassette, it may be removed by abruptly pulling one of the ends of the sheet material in a direction to cause its intermediate section to drag the leading end of the film through the exit.
Inventors
- 👤 Vincent L. Cocco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:52
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
220 words
A photographic film assemblage comprising: a film cassette including means defining an exit through which a strip of film may pass to the exterior of said film cassette; means for supporting a strip of film, said supporting means being rotatably supported within said film cassette; a strip of film coiled about said supporting means, said film including a leading end which is adapted to extend to the exterior of said film cassette via said exit and a trailing end secured to said supporting means; and means for retrieving said leading end of said film from within said film cassette, said retrieving means including a strip of flexible sheet material having first and second opposite ends and an intermediate section therebetween, said sheet material being wound about said film such that said intermediate section is located between and in engagement with an outwardly facing surface of the outermost convolution of said film and an interior surface of said film cassette with said first and second ends thereof extending through said exit to the exterior of said film cassette, whereby movement of said leading end of said film from within said film cassette may be accomplished by pulling said first end of said sheet material in a manner so as to withdraw said intermediate section of said sheet material from film cassette.
Claim 2
Dependent Claim
220 words
A photographic film assemblage comprising: a film cassette including means defining an exit through which a strip of film may pass to the exterior of said film cassette; means for supporting a strip of film, said supporting means being rotatably supported within said film cassette; a strip of film coiled about said supporting means, said film including a leading end which is adapted to extend to the exterior of said film cassette via said exit and a trailing end secured to said supporting means; and means for retrieving said leading end of said film from within said film cassette, said retrieving means including a strip of flexible sheet material having first and second opposite ends and an intermediate section therebetween, said sheet material being wound about said film such that said intermediate section is located between and in engagement with an outwardly facing surface of the outermost convolution of said film and an interior surface of said film cassette with said first and second ends thereof extending through said exit to the exterior of said film cassette, whereby movement of said leading end of said film from within said film cassette may be accomplished by pulling said first end of said sheet material in a manner so as to withdraw said intermediate section of said sheet material from film cassette.
Claim 3
Dependent Claim
38 words
A photographic film assemblage as defined in claim 1 wherein said first and second ends of said sheet material extend around the perimeter of said film cassette to a point whereat they are releasably secured to each other.
Claim 4
Dependent Claim
49 words
A photographic film assemblage as defined in claim 1 wherein the surface of said intermediate section in contact with the interior surface of said film cassette has a coefficient of friction less than the surface of said intermediate section which is in engagement with said outer convolution of film.
Claim 5
Dependent Claim
45 words
A photographic film assemblage as defined in claim 1 wherein said first and second ends of said sheet material form a passageway having converging walls as they enter said exit to thereby facilitate the introduction of said leading end of said film into said passageway.
Claim 6
Dependent Claim
29 words
A photographic film assemblage as defined in claim 1 wherein said sheet material includes means for reducing the propensity of said sheet material to build up a static charge.
Claim 7
Dependent Claim
29 words
A photographic film assemblage as defined in claim 5 wherein said means for reducing the propensity of said sheet material to build up a static charge includes carbon black.
Claim 8
Dependent Claim
15 words
A photographic film assemblage as defined in claim 6 wherein said sheet material is paper.
Claim 9
Dependent Claim
21 words
A photographic film assemblage as defined in claim 1 wherein said sheet material includes indicia thereon which relates to said film.
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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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |