US3250215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offset printing plate
Assignee: Vereinigte Leichtmetallwerke GmbH
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Filing: 1964-07-07
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Granted: 1966-05-10
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Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Eversheim Paul
- 👤 Berger Gunther
- 👤 Teubler Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:03
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/04; B41N1/08; B41N1/083; C; C22; C22C; C22C21/00; C22C21/02; C22C21/06; C22C21/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
AN OFFSET PRINTING PLATE CARRYING AN INK RECEPTIVE IMAGE ADAPTED TO BE REPRODUCTED BY OFFSET PRINTING, SAID OFFSET PRINTING PLATE COMPRISING AN ALUMINUM ALLOY PLATE HAVING OPPOSITE FACES AND CONSISTING OF AN ALUMINUM ALLOY IN SOFT CONDITION COMPOSED OF BETWEEN ABOUT 0.7% AND 1.3% MAGNESIUM, BETWEEN ABOUT 0.7% AND 1.3% SILICON, BETWEEN ABOUT 0.4% AND 1.0 MANGANESE, UP TO ABOUT 0.1% COPPER, THE BALANCE BEING ALUMINUM; AND A LAYER CONSISTING OF SUBSTANTIALLY PURE ALUMINUM AND HAVING A THICKNESS EQUAL TO BETWEEN ABOUT 2% AND 15% OF THE PREDETERMINED THICKNESS OF SAID ALUMINUM ALLOY PLATE COVERING AND FIRMLY ADHERING TO AT LEAST ONE OF SAID OPPOSITE FACES OF SAID ALUMINUM ALLOY PLATE.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |