Patent US2664291A successfully refreshed from Google Patents.
Patent US3209687A successfully refreshed from Google Patents.
US3209687A
Expired / Lapsed
US
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Half-tone printing plate
Assignee: Fairchild Semiconductor Corp
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Filing: 1962-04-26
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Granted: 1965-10-05
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Expires: 1982-04-26
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:57
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/02; B41C1/04; B44; B44B; B44B3/00; B44B3/001; B44B3/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A HALF-TONE PRINTING PLATE HAVING AN ENGRAVED PATTERN OF SUBSTANTIALLY RECTANGUALR OUTLINE CAVITIES HAVING THEIR BOUNDARY LINES ORIENTED AT 45 DEGREES TO THE PLATE EDGES THROUGHOUT ITS SHADOW AND MIDDLE TONE REGIONS, AND IN ITS HIGHLIGHT REGIONS A PATTERN OF SUCH CAVITIES FROM WHOSE BOUNDARIES AT LEAST A PART OF THE INTER-CAVITY CONNECTING MATERIAL IS ABSENT ALONG LINES PARALLEL TO ONE EDGE ONLY OF SAID PLATE, TO PROVIDE HIGHLIGHT DOTS AT THE PRINTING SURFACE WHICH ARE CENTERED ON THE CENTER-LINES OF SAID CAVITIES THAT ARE PARALLEL TO THE PLATE EDGES.
Claim 2
Dependent Claim
90 words
A HALF-TONE PRINTING PLATE HAVING AN ENGRAVED PATTERN OF SUBSTANTIALLY RECTANGUALR OUTLINE CAVITIES HAVING THEIR BOUNDARY LINES ORIENTED AT 45 DEGREES TO THE PLATE EDGES THROUGHOUT ITS SHADOW AND MIDDLE TONE REGIONS, AND IN ITS HIGHLIGHT REGIONS A PATTERN OF SUCH CAVITIES FROM WHOSE BOUNDARIES AT LEAST A PART OF THE INTER-CAVITY CONNECTING MATERIAL IS ABSENT ALONG LINES PARALLEL TO ONE EDGE ONLY OF SAID PLATE, TO PROVIDE HIGHLIGHT DOTS AT THE PRINTING SURFACE WHICH ARE CENTERED ON THE CENTER-LINES OF SAID CAVITIES THAT ARE PARALLEL TO THE PLATE EDGES.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |