Patent US3219451A successfully refreshed from Google Patents.
US3219451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitizing photographic media
Assignee: Technical Operations Inc
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Filing: 1962-12-11
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Granted: 1965-11-23
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Expires: 1982-12-11
Abstract
No abstract record available.
Inventors
- 👤 Valle James E Lu
- 👤 Gershon M Goldberg
- 👤 John G Pack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:34
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/496; G03C1/4965; Y; Y10; Y10S; Y10S430/00; Y10S430/133; Y10S430/136; Y10S430/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN IMAGE RECORDING MEDIUM COMPRISING A SUBSTRATE ELEMENT HAVING A SURFACE PROVIDING A RECORDING AREA, A PHOTOGRAPHIC LAYER OF VAPOR DEPOSITED PHOTOSENSITIVE SILVER HALIDE MICROCRYSTALS IN SUBSTANTIALLY CONTINUOUS PHASE SUPPORTED UPON SAID ELEMENT AND SUBSTANTIALLY COVERING THE EXTENT OF SAID AREA, SAID LAYER BEING ADHERED DIRECTLY TO SAID SUBSTRATE AND SAID MICROCRYSTALS BEING COHERED DIRECTLY TO EACH OTHER, SAID LAYER HAVING A DENSITY LESS THAN THAT OF SAID HALIDE IN SOLID CRYSTALLINE FORM, SAID LAYER BEING A FRACTION OF A MICRON IN THICKNESS, AND A SURFACE PORTION OF SAID LAYER OVER SAID AREA HAVING BEEN TREATED WITH A SENSITIZING MATERIAL TO PROVIDE AN INCREASED PHOTOGRAPHIC SENSITIVITY FOR SAID SURFACE PORTION.
Claim 2
Dependent Claim
110 words
AN IMAGE RECORDING MEDIUM COMPRISING A SUBSTRATE ELEMENT HAVING A SURFACE PROVIDING A RECORDING AREA, A PHOTOGRAPHIC LAYER OF VAPOR DEPOSITED PHOTOSENSITIVE SILVER HALIDE MICROCRYSTALS IN SUBSTANTIALLY CONTINUOUS PHASE SUPPORTED UPON SAID ELEMENT AND SUBSTANTIALLY COVERING THE EXTENT OF SAID AREA, SAID LAYER BEING ADHERED DIRECTLY TO SAID SUBSTRATE AND SAID MICROCRYSTALS BEING COHERED DIRECTLY TO EACH OTHER, SAID LAYER HAVING A DENSITY LESS THAN THAT OF SAID HALIDE IN SOLID CRYSTALLINE FORM, SAID LAYER BEING A FRACTION OF A MICRON IN THICKNESS, AND A SURFACE PORTION OF SAID LAYER OVER SAID AREA HAVING BEEN TREATED WITH A SENSITIZING MATERIAL TO PROVIDE AN INCREASED PHOTOGRAPHIC SENSITIVITY FOR SAID SURFACE PORTION.
References Cited (Backward Citations)
GB802041A
Cited
FR1267623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |