US2880270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for electromechanicaly producing printing forms from line-originals
Assignee: Dr-Ing Rudolf Hell KG
•
Filing: 1953-07-10
•
Granted: 1959-03-31
•
Expires: 1973-07-10
Abstract
No abstract record available.
Inventors
- 👤 Hell Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:54
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/02; B41C1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1943900A
Cited
US2063614A
Cited
US2092765A
Cited
US2079970A
Cited
US2386816A
Cited
US2691696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |