US2612451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic product, including a container and means for rupturing said container
Assignee: Polaroid Corp
•
Filing: 1946-11-29
•
Granted: 1952-09-30
•
Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:10
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A COMPOSITE PHOTOGRAPHIC PRODUCT COMPRISING AT LEAST ONE FILM UNIT, SAID FILM UNIT INCLUDING A FIRST LAYER, A SECOND LAYER AND A CONTAINER, SAID SECOND LAYER BEING ADAPTED TO BE SUPERPOSED ON SAID FIRST LAYER, SAID CONTAINER BEING POSITIONED BETWEEN SAID FIRST AND SECOND LAYERS WHEN SAID FIRST AND SECOND LAYERS ARE SUPERPOSED, SAID FIRST LAYER COMPRISING A PHOTOSENSITIVE MATERIAL, SAID CONTAINER DEFINING A CAVITY HAVING THEREIN A LIQUID COMPOSITION FOR PROCESSING SAID PHOTOSENSITIVE MATERIAL, SAID CONTAINER HAVING A PREDETERMINED PORTION WHICH, WHEN RUPTURED, IS ADAPTED TO PERMIT RELEASE OF SAID LIQUID COMPOSITION FROM SAID CAVITY FOR SPREADING BETWEEN SAID FIRST LAYER AND SAID SECOND LAYER, FIRST MEANS ATTACHED TO SAID CONTAINER FOR RUPTURING SAID PREDETERMINED PORTION UPON RELATIVE MOVEMENT BETWEEN SAID FIRST MEANS AND SAID PREDETERMINED PORTION, SAID CONTAINER BEING SECURED TO ONE OF SAID LAYERS BY A BOND HAVING A STRENGTH SUFFICIENT TO PREVENT MOVEMENT BE-
Claim 2
Dependent Claim
148 words
A COMPOSITE PHOTOGRAPHIC PRODUCT COMPRISING AT LEAST ONE FILM UNIT, SAID FILM UNIT INCLUDING A FIRST LAYER, A SECOND LAYER AND A CONTAINER, SAID SECOND LAYER BEING ADAPTED TO BE SUPERPOSED ON SAID FIRST LAYER, SAID CONTAINER BEING POSITIONED BETWEEN SAID FIRST AND SECOND LAYERS WHEN SAID FIRST AND SECOND LAYERS ARE SUPERPOSED, SAID FIRST LAYER COMPRISING A PHOTOSENSITIVE MATERIAL, SAID CONTAINER DEFINING A CAVITY HAVING THEREIN A LIQUID COMPOSITION FOR PROCESSING SAID PHOTOSENSITIVE MATERIAL, SAID CONTAINER HAVING A PREDETERMINED PORTION WHICH, WHEN RUPTURED, IS ADAPTED TO PERMIT RELEASE OF SAID LIQUID COMPOSITION FROM SAID CAVITY FOR SPREADING BETWEEN SAID FIRST LAYER AND SAID SECOND LAYER, FIRST MEANS ATTACHED TO SAID CONTAINER FOR RUPTURING SAID PREDETERMINED PORTION UPON RELATIVE MOVEMENT BETWEEN SAID FIRST MEANS AND SAID PREDETERMINED PORTION, SAID CONTAINER BEING SECURED TO ONE OF SAID LAYERS BY A BOND HAVING A STRENGTH SUFFICIENT TO PREVENT MOVEMENT BE-
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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) | 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 |