Patent US2393340A successfully refreshed from Google Patents.
Patent US3201835A successfully refreshed from Google Patents.
US3201835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting refractory metals
Assignee: Titanium Metals Corp
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Filing: 1963-03-11
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Granted: 1965-08-24
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Donald E Cooper
- 👤 Schuyler A Herres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:33
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN APPARATUS FOR DIE CASTING A REFRACTORY METAL INCLUDING A GAS TIGHT SHELL, A PAIR OF SEPARABLE DIE BLOCKS INSIDE SAID SHELL RECESSED TO FORM A CASTING CAVITY THEREIN AND MEANS FOR MELTING A BODY OF MOLTEN METAL IN A TILTABLE CRUCIBLE IN SAID SHELL THE IMPROVEMENTS WHICH COMPRISE; (A) A HORIZONTAL FEED TUBE INSIDE SAID SHELL COMMUNICATING WITH THE CASTING CAVITY IN SAID DIE BLOCKS SAID FEED TUBE HAVING A GRAPHITE LINER, (B) MEANS FOR TRANSFERRING MOLTEN METAL FROM SAID TILTABLE CRUCIBLE INTO SAID FEED TUBE THROUGH THE TOP THEREOF, AND
Claim 2
Dependent Claim
92 words
IN APPARATUS FOR DIE CASTING A REFRACTORY METAL INCLUDING A GAS TIGHT SHELL, A PAIR OF SEPARABLE DIE BLOCKS INSIDE SAID SHELL RECESSED TO FORM A CASTING CAVITY THEREIN AND MEANS FOR MELTING A BODY OF MOLTEN METAL IN A TILTABLE CRUCIBLE IN SAID SHELL THE IMPROVEMENTS WHICH COMPRISE; (A) A HORIZONTAL FEED TUBE INSIDE SAID SHELL COMMUNICATING WITH THE CASTING CAVITY IN SAID DIE BLOCKS SAID FEED TUBE HAVING A GRAPHITE LINER, (B) MEANS FOR TRANSFERRING MOLTEN METAL FROM SAID TILTABLE CRUCIBLE INTO SAID FEED TUBE THROUGH THE TOP THEREOF, AND
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |