Patent US2548565A successfully refreshed from Google Patents.
US2548565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making relief printing plates
Assignee: Eastman Kodak Co
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Filing: 1948-07-10
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Granted: 1951-04-10
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Expires: 1968-07-10
Abstract
No abstract record available.
Inventors
- 👤 Henry C Staehle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:34
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
THE METHOD OF MAKING A HIGH RELIEF PHOTOGRAPHIC IMAGE, WHICH COMPRISES COATING A SUPPORT, IN ORDER, WITH A LAYER OF A BARIUM SULFATE FRIABLE MATERIAL, A LAYER OF ASPHALT, AND A LIGHTSENSITIVE BICHROMATED GLUE LAYER CONTAINING A DISPERSION OF SOFT ACRYLATE RESIN, EXPOSING SAID LIGHTSENSITIVE LAYER TO LIGHT RAYS TO RENDER ONLY PORTIONS OF SAID LAYER WATER-SOLUBLE, WASHING AWAY THE SOLUBLE PORTIONS OF SAID GLUE LAYER, AND REMOVING THE ASPHALT AND AT LEAST PART OF THE FRIABLE MATERIAL BY SANDBLASTING IN THOSE PARTS OF THE GLUE LAYER WHERE THE GLUE WAS REMOVED.
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |