US3136672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing plate and method of making the same
Assignee: Individual
•
Filing: 1961-08-28
•
Granted: 1964-06-09
•
Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert G Prongay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:58
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/16; B41N1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR FORMING AN ETCHED PRINTING PLATE FROM A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ZINC-BASE ALLOYS AND MAGNESIUM-BASE ALLOYS CAPABLE OF RECEIVING A POWDERLESS ETCH AFTER COMPACTION OF THE SURFACE THEREOF TO BE ETCHED, COMPRISING OF THE SURFACE THEEOF TO BE ETCHED, COMPRISING THE STEPS OF EXTRUDING SAID MATERIL IN THE FORM OF A SEAMLESS CYLINDRICAL PRINTING PLATE TO ACHIEVE A SURFACE RECEPTIVE TO POWDERLESS ETCHING AND ETCHING SUCH SURFACE BY THE POWDERLESS ETCHING PROCESS.
Claim 2
Dependent Claim
78 words
A PROCESS FOR FORMING AN ETCHED PRINTING PLATE FROM A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ZINC-BASE ALLOYS AND MAGNESIUM-BASE ALLOYS CAPABLE OF RECEIVING A POWDERLESS ETCH AFTER COMPACTION OF THE SURFACE THEREOF TO BE ETCHED, COMPRISING OF THE SURFACE THEEOF TO BE ETCHED, COMPRISING THE STEPS OF EXTRUDING SAID MATERIL IN THE FORM OF A SEAMLESS CYLINDRICAL PRINTING PLATE TO ACHIEVE A SURFACE RECEPTIVE TO POWDERLESS ETCHING AND ETCHING SUCH SURFACE BY THE POWDERLESS ETCHING PROCESS.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |