US3307231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making electrotype plates
Assignee: Individual
•
Filing: 1963-04-08
•
Granted: 1967-03-07
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 John W Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:12
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
APPARATUS FOR CASTING BACK-UP METAL ON AN ELECTROTYPE SHELL, COMPRISING A HEATING STATION, A COOLING STATION, AND A PERFORATED TRANSFER PLATE ARRANGED FOR SLIDABLE MOVEMENT BETWEEN SAID STATIONS, SAID COOLING STATION HAVING A RECTANGULAR BOX-LIKE SHAPE, THE UPPER SURFACE OF WHICH IS FORMED TO PROVIDE A WAFFLE PLATE CONFIGURATION, SAID BOX-LIKE SHAPE HAVING A SLEEVE EXTENDING FROM THE UPPER SURFACE FOR EVACUATION OF AIR FROM THE UPPER SURFACE, AND MEANS TO CIRCULATE A COOLING MEDIUM THROUGH THE BOX-LIKE SHAPE.
Claim 2
Dependent Claim
79 words
APPARATUS FOR CASTING BACK-UP METAL ON AN ELECTROTYPE SHELL, COMPRISING A HEATING STATION, A COOLING STATION, AND A PERFORATED TRANSFER PLATE ARRANGED FOR SLIDABLE MOVEMENT BETWEEN SAID STATIONS, SAID COOLING STATION HAVING A RECTANGULAR BOX-LIKE SHAPE, THE UPPER SURFACE OF WHICH IS FORMED TO PROVIDE A WAFFLE PLATE CONFIGURATION, SAID BOX-LIKE SHAPE HAVING A SLEEVE EXTENDING FROM THE UPPER SURFACE FOR EVACUATION OF AIR FROM THE UPPER SURFACE, AND MEANS TO CIRCULATE A COOLING MEDIUM THROUGH THE BOX-LIKE SHAPE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |