US2707720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic valve
Assignee: Ajax Engineering Corp
•
Filing: 1952-04-09
•
Granted: 1955-05-03
•
Expires: 1972-04-09
Abstract
No abstract record available.
Inventors
- 👤 Tama Mario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:15
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/003; Y; Y10; Y10T; Y10T137/00; Y10T137/9682
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
IN A POURING DEVICE, WALLS FORMING A CHAMBER ADAPTED TO CONTAIN A BATH OF ELECTRICALLY CONDUCTING MATERIAL, WALLS FORMING A SIDE POURING OPENING FROM THE CHAMBER BENEATH THE LEVEL OF THE MOLTEN MATERIAL, AND ELECTRIC INDUCTION MEANS DEFLECTING THE BATH AWAY FROM THE SIDE POURING OPENING TO PREVENT POURING.
References Cited (Backward Citations)
US329491A
Cited
FR623999A
Cited
US1853842A
Cited
US1853843A
Cited
US1914354A
Cited
US2101675A
Cited
US2140607A
Cited
US2186718A
Cited
US2224982A
Cited
US2536325A
Cited
US2528208A
Cited
US2616800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |