US3833381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic products including rupturable containers
Assignee: Polaroid Corp
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Filing: 1972-10-25
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Granted: 1974-09-03
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Expires: 1992-10-25
Abstract
Abstract Single use rupturable containers or ''''pods'''' are disclosed for use in diffusion transfer film units. These pods are particularly adapted for use in film units providing integral negativepositive multicolor reflection prints. The rupturable containers have a plurality of fluid-retaining compartments, and the end compartments have a trapezoidal configuration effective in assisting the uniform distribution of processing fluid released by rupture of the pod.
Inventors
- 👤 R Chen
- 👤 Cole T Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/32; G03C8/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
52 words
A container as defined in claim 1 wherein said cavity partitions are formed by securing the container''s opposing walls together in transverse strips extending from one longitudinal margin to the other, said partitions for each said end compartment forming an angle of about 10*-15* from a line perpendicular with the longitudinal margins.
Claim 2
Dependent Claim
31 words
A container as defined in claim 1 wherein said walls are formed of a fluid-impervious laminate including an inner layer of a thermoplastic polymeric material substantially impervious to said processing fluid.
Claim 3
Dependent Claim
14 words
A container as defined in claim 3 wherein said inner wall comprises polyvinyl chloride.
Claim 4
Dependent Claim
17 words
A container as defined in claim 1 wherein said fluid retaining cavity is divided into three compartments.
Claim 5
Dependent Claim
29 words
A container as defined in claim 3 wherein a thin strip of a second thermoplastic material is positioned between the opposed walls forming said less tightly secured longitudinal margin.
Claim 6
Dependent Claim
123 words
A photographic product for forming a diffusion transfer image comprising a photosensitive element having a photosensitive layer carried on a support, a second sheet-like element in superposed relation with said photosensitive element or adapted to be brought into superposed relation with said photosensitive element, an image-receiving layer positioned between said photosensitive element support and said second sheet-like element when said photosensitive element and said second sheet-like element are in superposed relation, and a rupturable, fluid releasing container as defined in claim 1, said rupturable container being positioned so that upon compression of said container said fluid will be released for distribution between predetermined layers of said superposed elements to develop said photosensitive layer and provide a diffusion transfer image at said image-receiving layer.
Claim 7
Dependent Claim
24 words
A photographic product as defined in claim 7 wherein said photosensitive element is a multicolor photosensitive element including dye developers as the imageforming materials.
Claim 8
Dependent Claim
53 words
A photographic product as defined in claim 8 wherein said image-receiving layer is positioned between said photosensitive layer and said photosensitive element support and all layers of said photosensitive element between said image-receiving layer and said support are transparent, said photosensitive element and said second sheet-like element being held in registered, superposed relationship.
Claim 9
Dependent Claim
40 words
A photographic product as defined in claim 8 wherein said second sheet-like element is transparent and said image-receiving layer is positioned on said second sheet-like element, said photosensitive element and said second sheet-like element being held in registered, superposed relationship.
Claim 10
Dependent Claim
35 words
A photographic product as defined in claim 10, including binding means extending around the edges of said superposed elements, said binding means aiding in retaining and distributing said processing composition following rupture of said container.
Claim 11
Dependent Claim
19 words
A photographic product as defined in claim 11 wherein said container is a container as defined in claim 2.
Claim 12
Dependent Claim
105 words
A photographic product for forming a diffusion transfer image comprising a photosensitive element having a photosensitive layer carried on a support, a second sheet-like element having an image-receiving layer carried on a support, said photosensitive element and said second sheet-liKe element in superposed relation or adapted to be brought into superposed relation with said supports outermost, and a rupturable, fluid releasing container as defined in claim 1 being positioned to that upon compression of said container said fluid will be released for distribution between predetermined layers of said superposed elements to develop said photosensitive layer and provide a diffusion transfer image at said image-receiving layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |