US2863000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for making printing blocks
Assignee: Dr-Ing Rudolf Hell KG
•
Filing: 1953-05-05
•
Granted: 1958-12-02
•
Expires: 1973-05-05
Abstract
No abstract record available.
Inventors
- 👤 Hell Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:52
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; B; B41; B41C; B41C1/00; B41C1/02; B41C1/04; B41M; B41M9/00; H04N1/393
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1918124A
Cited
US2005130A
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US2225915A
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US2076220A
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US2312042A
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US2544225A
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US2638500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |