Patent US2776256A successfully refreshed from Google Patents.
US2776256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making intaglio printing cylinders
Assignee: Individual
•
Filing: 1953-03-19
•
Granted: 1957-01-01
•
Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Kurt P A Eulner
- 👤 Joseph F Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:49
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/22; C25D5/60; C25D5/605; C25D5/611; C25D5/615; C25D5/617; C25D5/623; C25D5/627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
AN IMPROVEMENT IN THE ART OF MANUFACTURING AN INTAGLIO PRINTING CYLINDER WHEREIN A COPPER COATING IS ELECTROPLATED ON THE SMOOTH POLISHED PERIPHERY OF A BASE CYLINDER WHILE IT IS ROTATING IN A COPPER DEPOSITING BATH COMPRISING: POLISH-BRUSHING THE COPPER COATING ON THE PERIPHERY OF THE ROTATING CYLINDER WITH A FLEXIBLE BRASSBRISTLE BRUSH FOR A SUBSTANTIAL TIME DURING THE END PORTION OF THE DEPOSITION PERIOD AND WHILE COPPER IS BEING DEPOSITED ON THE CYLINDER TO PRODUCE A SMOOTH POLISHED CYLINDER SUBSTANTIALLY READY FOR THE ETCHING OPERATION.
Claim 2
Dependent Claim
85 words
AN IMPROVEMENT IN THE ART OF MANUFACTURING AN INTAGLIO PRINTING CYLINDER WHEREIN A COPPER COATING IS ELECTROPLATED ON THE SMOOTH POLISHED PERIPHERY OF A BASE CYLINDER WHILE IT IS ROTATING IN A COPPER DEPOSITING BATH COMPRISING: POLISH-BRUSHING THE COPPER COATING ON THE PERIPHERY OF THE ROTATING CYLINDER WITH A FLEXIBLE BRASSBRISTLE BRUSH FOR A SUBSTANTIAL TIME DURING THE END PORTION OF THE DEPOSITION PERIOD AND WHILE COPPER IS BEING DEPOSITED ON THE CYLINDER TO PRODUCE A SMOOTH POLISHED CYLINDER SUBSTANTIALLY READY FOR THE ETCHING OPERATION.
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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |