Patent US3833382A successfully refreshed from Google Patents.
US3833382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic products including rupturable containers
Assignee: Polaroid Corp
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Filing: 1972-12-29
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Granted: 1974-09-03
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Expires: 1992-12-29
Abstract
Abstract Single use rupturable containers or ''''pods'''' are disclosed for use in diffusion transfer film units. These pods are particularly adapted for service in film units providing integral negativepositive multicolor reflection prints. The container walls enclosing each fluid retaining cavity are secured together at a plurality of locations within said cavity to assist in the uniform distribution of processing fluid released upon rupture of the pod.
Inventors
- 👤 E Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:33
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/32; G03C8/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
57 words
A container as defIned in claim 1 wherein the cavity seals intermediate the container margins are formed simultaneously and in the same manner as the sealed margins at either end of the container, said cavity seals being arranged at evenly spaced intervals in at least one relatively centrally situated row extending along the length of the cavity.
Claim 2
Dependent Claim
33 words
A container as defined in claim 1 wherein said container 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 cavity seals are arranged in two staggered rows.
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
36 words
A container as defined in claim 1 wherein said photographic processing composition includes an aqueous solution of a viscosity-increasing, film-forming polymer and said insoluble material dispersed in said photographic processing composition is a light reflecting pigment.
Claim 7
Dependent Claim
20 words
A container as defined in claim 7 wherein said polymer is a cellulose ether and said pigment is titanium dioxide.
Claim 8
Dependent Claim
23 words
A container as defined in claim 8 wherein said titanium dioxide comprises about 20 to about 50 percent, by weight, of said composition.
Claim 9
Dependent Claim
83 words
A photographic product for forming a diffusion transfer image comprising a photosensitive element, 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 on one of said elements 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.
Claim 10
Dependent Claim
24 words
A photographic product as defined in claim 10 wherein said photosensitive element is a multicolor photosensitive element including dye developers as the image-forming materials.
Claim 11
Dependent Claim
36 words
A photographic product as defined in claim 11 wherein said second sheet like element is transparent and includes said image-receiving layer, said photosensitive element and said second sheet like element being held in registered, superposed relationship.
Claim 12
Dependent Claim
35 words
A photographic product as defined in claim 12, 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 13
Dependent Claim
58 words
A photographic product as defined in claim 13 wherein the cavity seals intermediate the container margins are formed simultaneously and in the same manner as the sealed margins at either end of the container, said cavity seals being arranged at evenly spaced intervals in at least one relatively centrally situated row extending along the length of the cavity.
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 |