Patent US3249404A successfully refreshed from Google Patents.
US3249404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous growth of crystalline materials
Assignee: Merck and Co Inc
•
Filing: 1963-02-20
•
Granted: 1966-05-03
•
Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Donald C Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:39
CPC Classifications
C; C30; C30B; C30B11/00; C30B11/001; C30B15/00; C30B15/002; C30B15/08; H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; Y; Y10; Y10S; Y10S117/00; Y10S117/90; Y10S117/91; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1036; Y10T117/1068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN AN APPARATUS FOR CONTINUOUS CASTING OF SINGLE OR LARGE CRYSTALLINE MATERIAL IN THE FORM OF ELONGATED RODS WHEREIN THE MOLTEN CHARGE POSITIONED IN A HEATED CHAMBER IS WITHDRAWN FROM THE BOTTOM OF THE CHAMBER THROUGH THE BORE OF A ROD-FORMING DIE HAVING A LONGITUDINAL AXIS IN THE DIRECTION OF TRAVEL OF THE MATERIAL THROUGH THE DIE, AND WHEREIN THE RESULTING ROD PASSES THROUGH A QUENCHING DEVICE POSITIONED BELOW THE DIE, THE IMPROVEMENT WHEREIN THE ROD-FORMING DIE IS MADE
Claim 2
Dependent Claim
79 words
IN AN APPARATUS FOR CONTINUOUS CASTING OF SINGLE OR LARGE CRYSTALLINE MATERIAL IN THE FORM OF ELONGATED RODS WHEREIN THE MOLTEN CHARGE POSITIONED IN A HEATED CHAMBER IS WITHDRAWN FROM THE BOTTOM OF THE CHAMBER THROUGH THE BORE OF A ROD-FORMING DIE HAVING A LONGITUDINAL AXIS IN THE DIRECTION OF TRAVEL OF THE MATERIAL THROUGH THE DIE, AND WHEREIN THE RESULTING ROD PASSES THROUGH A QUENCHING DEVICE POSITIONED BELOW THE DIE, THE IMPROVEMENT WHEREIN THE ROD-FORMING DIE IS MADE
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |