US2612449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-receiving photographic element combined with a processing container
Assignee: Polaroid Corp
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Filing: 1950-02-02
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Granted: 1952-09-30
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Expires: 1970-02-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/50; Y; Y10; Y10S; Y10S430/00; Y10S430/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A COMPOSITE PHOTOGRAPHIC UNIT COMPRISING A FIRST LAYER AND A SECOND LAYER, SAID LAYERS BEING ADAPTED TO BE JUXTAPOSED SO THAT A SURFACE OF SAID FIRST LAYER AND A SURFACE OF SAID SECOND LAYER ARE IN SUPERPOSITION, ONE OF SAID SURFACES BEING PHOTOSENSITIVE, A CONTAINER ASSOCIATED WITH SAID SURFACE OF SAID FIRST LAYER, SAID CONTAINER CARRYING A LIQUID FOR PROCESSING SAID PHOTOSENSITIVE SURFACE AND BEING CAPABLE OF RELEASING SAID LIQUID UPON APPLICATION OF MECHANICAL STRESS THERETO, THAT PORTION OF SAID CONTAINER FARTHEST FROM SAID SURFACE OF SAID FIRST LAYER BEING SUBSTANTIALLY A PREDETERMINED DISTANCE FROM SAID SURFACE OF SAID FIRST LAYER, AND MEANS NORMALLY PREVENTING APPLICATION OF MECHANICAL STRESS TO SAID CONTAINER, SAID MEANS COMPRISING AT LEAST AN ELEMENT OF PREDE-
Claim 2
Dependent Claim
121 words
A COMPOSITE PHOTOGRAPHIC UNIT COMPRISING A FIRST LAYER AND A SECOND LAYER, SAID LAYERS BEING ADAPTED TO BE JUXTAPOSED SO THAT A SURFACE OF SAID FIRST LAYER AND A SURFACE OF SAID SECOND LAYER ARE IN SUPERPOSITION, ONE OF SAID SURFACES BEING PHOTOSENSITIVE, A CONTAINER ASSOCIATED WITH SAID SURFACE OF SAID FIRST LAYER, SAID CONTAINER CARRYING A LIQUID FOR PROCESSING SAID PHOTOSENSITIVE SURFACE AND BEING CAPABLE OF RELEASING SAID LIQUID UPON APPLICATION OF MECHANICAL STRESS THERETO, THAT PORTION OF SAID CONTAINER FARTHEST FROM SAID SURFACE OF SAID FIRST LAYER BEING SUBSTANTIALLY A PREDETERMINED DISTANCE FROM SAID SURFACE OF SAID FIRST LAYER, AND MEANS NORMALLY PREVENTING APPLICATION OF MECHANICAL STRESS TO SAID CONTAINER, SAID MEANS COMPRISING AT LEAST AN ELEMENT OF PREDE-
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) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |