Patent US2830901A successfully refreshed from Google Patents.
US2830901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic product
Assignee: Polaroid Corp
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Filing: 1955-04-22
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Granted: 1958-04-15
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Expires: 1975-04-22
Abstract
No abstract record available.
Inventors
- 👤 Otto E Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:43
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/32; G03C8/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PHOTOGRAPHIC PRODUCT COMPRISING, IN COMBINATION, A PHOTOSENSITIVE ELEMENT AND AN IMAGE-RECEIVING ELEMENT ADAPTED TO BE MOUNTED IN SUPERPOSED RELATION WITH SAID PHOTOSENSITIVE ELEMENT DURING PHOTOGRAPHIC PROCESSING THEREOF, SAID PHOTOSENSITIVE ELEMENT COMPRISING A PLURALITY OF ALTERNATELY SPACED PHOTOSENSITIVE SILVER HALIDE EMULSION PORTIONS, CAPABLE OF BEING EXPOSED, AND NONPHOTOSENSITIVE PORTIONS INCLUDING A NONPHOTOSENSITIVE LEADER, SAID PHOTOSENSITIVE AND NONPHOTOSENSITIVE PORTIONS BEING JOINED TOGETHER ENDWISE BY SCARF JOINTS TO FORM AN INTERGRAL, CONTINUOUS PHOTOSENSITIVE ELEMENT, A SILVER HALIDE DEVELOPING AGENT, AND A PLURALITY OF RUPTURABLE CONTAINERS, EACH OF SAID CONTAINERS RELEASABLY HOLDING A PREDETERMINED QUANTITY OF A PROCESSING LIQUID AND BNEING CAPABLE OF RELEASING SAID LIQUID FOR SPREADING ACROSS A PREDETERMINED AREA OF A PHOTOSENSITIVE PORTION SO AS TO EFFECT DEVELOPMENT OF EXPOSED SILVER HALIDE AND INFORMATION OF A POSITIVE IMAGE ON SAID IMAGE-RECEIVING ELEMENT.
Claim 2
Dependent Claim
132 words
A PHOTOGRAPHIC PRODUCT COMPRISING, IN COMBINATION, A PHOTOSENSITIVE ELEMENT AND AN IMAGE-RECEIVING ELEMENT ADAPTED TO BE MOUNTED IN SUPERPOSED RELATION WITH SAID PHOTOSENSITIVE ELEMENT DURING PHOTOGRAPHIC PROCESSING THEREOF, SAID PHOTOSENSITIVE ELEMENT COMPRISING A PLURALITY OF ALTERNATELY SPACED PHOTOSENSITIVE SILVER HALIDE EMULSION PORTIONS, CAPABLE OF BEING EXPOSED, AND NONPHOTOSENSITIVE PORTIONS INCLUDING A NONPHOTOSENSITIVE LEADER, SAID PHOTOSENSITIVE AND NONPHOTOSENSITIVE PORTIONS BEING JOINED TOGETHER ENDWISE BY SCARF JOINTS TO FORM AN INTERGRAL, CONTINUOUS PHOTOSENSITIVE ELEMENT, A SILVER HALIDE DEVELOPING AGENT, AND A PLURALITY OF RUPTURABLE CONTAINERS, EACH OF SAID CONTAINERS RELEASABLY HOLDING A PREDETERMINED QUANTITY OF A PROCESSING LIQUID AND BNEING CAPABLE OF RELEASING SAID LIQUID FOR SPREADING ACROSS A PREDETERMINED AREA OF A PHOTOSENSITIVE PORTION SO AS TO EFFECT DEVELOPMENT OF EXPOSED SILVER HALIDE AND INFORMATION OF A POSITIVE IMAGE ON SAID IMAGE-RECEIVING ELEMENT.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |