Patent US2700609A successfully refreshed from Google Patents.
US2700609A
Expired / Lapsed
US
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Method of making intaglio engravings
Assignee: News Syndicate Co Inc
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Filing: 1953-12-16
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Granted: 1955-01-25
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Expires: 1973-12-16
Abstract
No abstract record available.
Inventors
- 👤 Lando Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:41
CPC Classifications
G; G03; G03F; G03F3/00; G03F3/10; G03F3/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN THE DUPLICATION OF A CORRECTED INTAGLIO ENGRAVING WHICH HAS BEEN ETCHED THROUGH A RESIST MADE BY DEVELOPING AND STRIPPING ON A SENSITIVE STRIPPING TISSUE WHICH AS THE RESULT OF TWO EXPOSURES CONTAINS A CONTINUOUS-TONE IMAGE AND A HALF-TONE IMAGE OF THE ORIGINAL, THE METHOD WHICH COMPRISES MAKING AN INK PRINT FROM THE CORRECTED ENGRAVING ON A LIGHT-PERVIOUS SHEET AND EXPOSING A SENSITIVE STRIPPING TISSUE SUCCESSIVELY TO THE INK PRINT AND TO A HALF-TONE DIAPOSITIVE HAVING OPAQUE DOTS SUBSTANTIALLY CORRESPONDING IN PATTERN AND AREA WITH THE PATTERN AND AREA OF THE CAVITIES OF THE CORRECTED ENGRAVING, TO PROVIDE A RESIST FOR THE ETCHING OF A DUPLICATE ENGRAVING.
Claim 2
Dependent Claim
107 words
IN THE DUPLICATION OF A CORRECTED INTAGLIO ENGRAVING WHICH HAS BEEN ETCHED THROUGH A RESIST MADE BY DEVELOPING AND STRIPPING ON A SENSITIVE STRIPPING TISSUE WHICH AS THE RESULT OF TWO EXPOSURES CONTAINS A CONTINUOUS-TONE IMAGE AND A HALF-TONE IMAGE OF THE ORIGINAL, THE METHOD WHICH COMPRISES MAKING AN INK PRINT FROM THE CORRECTED ENGRAVING ON A LIGHT-PERVIOUS SHEET AND EXPOSING A SENSITIVE STRIPPING TISSUE SUCCESSIVELY TO THE INK PRINT AND TO A HALF-TONE DIAPOSITIVE HAVING OPAQUE DOTS SUBSTANTIALLY CORRESPONDING IN PATTERN AND AREA WITH THE PATTERN AND AREA OF THE CAVITIES OF THE CORRECTED ENGRAVING, TO PROVIDE A RESIST FOR THE ETCHING OF A DUPLICATE ENGRAVING.
References Cited (Backward Citations)
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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) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |