US3069266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product for distributing photographic material by capillary action
Assignee: Polaroid Corp
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Filing: 1960-10-31
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Granted: 1962-12-18
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:54
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
THE METHOD OF TREATING A LIGHT-SENSITIVE MATERIAL LOCATED IN A LAYER BETWEEN A PAIR OF LIQUID-CONFINING SHEETS TO FORM A VISIBLE PHOTOGRAPHIC IMAGE, WHICH METHOD COMPRISES THE STEPS OF; FORMING A CAPILLAYR INTERSPACE OF SUBSTANTIALLY UNIFORM CAPILLARY DEPTH THROUGHOUT ITS LENGTH AND WIDTH BETWEEN THE INNER SURFACES OF SAID SHEETS BY SUPERPOSING SAID SHEETS WITH SAID INNER SURFACES SPACED A PREDETERMINED MINUTE DISTANCE APART AND SO HOLDING SAID SHEETS WITH SAID INNER SURFACES THEREOF RIGIDLY FIXED WITH RESPECT TO ONE ANOTHER THAT A FREE-FLOWING LIQUID WILL MOVE THROUGH SAID CAPILLARY INTERSPACE BY CAPILLARY ACTION TO FORM A CONTINUOUS LAYER OF SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT THE LENGTH AND WIDTH OF SAID INTERSPACE; SUPPLYING A QUANTITY OF A FREE-FLOWING LIQUID, INCLUDING AN AGENT CAPABLE OF INITIATING THE PROCESSING OF SAID LIGHT-SENSITIVE MATERIAL TO PRODUCE A VISIBLE IMAGE, TO SAID INTERSPACE BETWEEN SAID SHEETS AT ONE EDGE THEREOF; SPREADING SAID LIQUID IN A LAYER BETWEEN SAID SHEETS BY CAPILLARY ACTION TO FORM A SANDWICH INCLUDING SAID LIGHT-SENSITIVE MATERIAL AND SAID AGENT FOR INITIATING PROCESSING; AT SOME STAGE IN SAID METHOD, EXPOSING SAID LIGHT-SENSITIVE MATERIAL TO ACTINIC RADIATION TO PRODUCE AN IMAGE IN SAID LIGHT-SENSITIVE MATERIAL; AND REACTING SAID LIQUID WITH SAID EXPOSED LIGHT-SENSITIVE MATERIAL TO PRODUCE A VISIBLE PHOTOGRAPHIC IMAGE.
Claim 2
Independent Claim
207 words
THE METHOD OF TREATING A LIGHT-SENSITIVE MATERIAL LOCATED IN A LAYER BETWEEN A PAIR OF LIQUID-CONFINING SHEETS TO FORM A VISIBLE PHOTOGRAPHIC IMAGE, WHICH METHOD COMPRISES THE STEPS OF; FORMING A CAPILLAYR INTERSPACE OF SUBSTANTIALLY UNIFORM CAPILLARY DEPTH THROUGHOUT ITS LENGTH AND WIDTH BETWEEN THE INNER SURFACES OF SAID SHEETS BY SUPERPOSING SAID SHEETS WITH SAID INNER SURFACES SPACED A PREDETERMINED MINUTE DISTANCE APART AND SO HOLDING SAID SHEETS WITH SAID INNER SURFACES THEREOF RIGIDLY FIXED WITH RESPECT TO ONE ANOTHER THAT A FREE-FLOWING LIQUID WILL MOVE THROUGH SAID CAPILLARY INTERSPACE BY CAPILLARY ACTION TO FORM A CONTINUOUS LAYER OF SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT THE LENGTH AND WIDTH OF SAID INTERSPACE; SUPPLYING A QUANTITY OF A FREE-FLOWING LIQUID, INCLUDING AN AGENT CAPABLE OF INITIATING THE PROCESSING OF SAID LIGHT-SENSITIVE MATERIAL TO PRODUCE A VISIBLE IMAGE, TO SAID INTERSPACE BETWEEN SAID SHEETS AT ONE EDGE THEREOF; SPREADING SAID LIQUID IN A LAYER BETWEEN SAID SHEETS BY CAPILLARY ACTION TO FORM A SANDWICH INCLUDING SAID LIGHT-SENSITIVE MATERIAL AND SAID AGENT FOR INITIATING PROCESSING; AT SOME STAGE IN SAID METHOD, EXPOSING SAID LIGHT-SENSITIVE MATERIAL TO ACTINIC RADIATION TO PRODUCE AN IMAGE IN SAID LIGHT-SENSITIVE MATERIAL; AND REACTING SAID LIQUID WITH SAID EXPOSED LIGHT-SENSITIVE MATERIAL TO PRODUCE A VISIBLE PHOTOGRAPHIC IMAGE.
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) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |