US2914405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of gravure reproduction
Assignee: Art Color Printing Co
•
Filing: 1955-07-26
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Granted: 1959-11-24
•
Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 John G Consaul
- 👤 Velten Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:46
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
THE METHOD OF GRAVURE REPRODUCTION WHICH COMPRISES THE FOLLOWING STEPS IN SUCCESSION , MAKING A CONTINUOUS-TONE NEGATIVE FROM A COPY TO BE REPRODUCED, MAKING AN UNSCREENED, CONTINUOUS-TONE POSITIVE FROM SAID NEGATIVE, MAKING A LINE SCREEN NEGATIVE FROM SAID CONTINUOUS-TONE POSITIVE BY PHOTOGRAPHING THE POSITIVE THROUGH A CONVENTIONAL HALF-TONE SCREEN AND AN AUXILIARY SCREENING DEVICE COMPRISING AN OPAQUE MEMBER HAVING A PLURALITY OF SPACED CIRCULAR OPENINGS THERETHROUGH ARRANGED IN TWO STRAIGH LINES THAT CROSS EACH OTHER AT A
Claim 2
Independent Claim
77 words
THE METHOD OF GRAVURE REPRODUCTION WHICH COMPRISES THE FOLLOWING STEPS IN SUCCESSION , MAKING A CONTINUOUS-TONE NEGATIVE FROM A COPY TO BE REPRODUCED, MAKING AN UNSCREENED, CONTINUOUS-TONE POSITIVE FROM SAID NEGATIVE, MAKING A LINE SCREEN NEGATIVE FROM SAID CONTINUOUS-TONE POSITIVE BY PHOTOGRAPHING THE POSITIVE THROUGH A CONVENTIONAL HALF-TONE SCREEN AND AN AUXILIARY SCREENING DEVICE COMPRISING AN OPAQUE MEMBER HAVING A PLURALITY OF SPACED CIRCULAR OPENINGS THERETHROUGH ARRANGED IN TWO STRAIGH LINES THAT CROSS EACH OTHER AT A
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Cited
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Cited
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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) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |