US3084041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing a niobium-tin compound
Assignee: Individual
•
Filing: 1962-02-09
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Granted: 1963-04-02
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Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Sylvester T Zegler
- 👤 Jr Joseph B Darby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:15
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C27/00; C22C27/02; H; H10; H10N; H10N60/00; Y; Y10; Y10S; Y10S420/00; Y10S420/901; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/805; Y10S505/806; Y10S505/815; Y10S505/823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PROCESS OF PREPARING PURE NB3SN, COMPRISING MIXING TIN AND NIOBIUM POWDERS, THE QUANTITY OF TIN POWDER BEING ABOVE 30% BY WEIGHT OF THE MIXTURE; HEATING THE MIXTURE TO THE REACTION TEMPERATURE OF FROM 900 TO 1000* C. WHEREBY THE TIN MELTS; MAINTAINING SAID REACTION TEMPERATURE UNTIL ALL NIOBIUM HAS REACTED WITH THE MOLTEN TIN AND BEEN CONVERTED TO NB3SN; COOLING THE REACTION MASS FOR SO IDIFICATION; MECHANICALLY DISTINTEGRATING THE MASS TO POWDER; IMMERSING THE POWDER IN CONCENTRATED HYDROCHLORIC ACID WHEREBY NONREACTED TIN IS DISSOLVED, SEPARATING THE SOLID NB3SN FROM THE TIN CHLORIDE SOLUTION FORMED; RINSING THE NB3SN FROM THE TIN CHLORIDE SOLUTION HOL; DRYING THE NBRSN; AND SINTERING THE NB3SN IN AN INERT ATMOSPHERE AT A TEMPERATURE OF BETWEEN 900 AND 1300* C.
Claim 2
Dependent Claim
124 words
A PROCESS OF PREPARING PURE NB3SN, COMPRISING MIXING TIN AND NIOBIUM POWDERS, THE QUANTITY OF TIN POWDER BEING ABOVE 30% BY WEIGHT OF THE MIXTURE; HEATING THE MIXTURE TO THE REACTION TEMPERATURE OF FROM 900 TO 1000* C. WHEREBY THE TIN MELTS; MAINTAINING SAID REACTION TEMPERATURE UNTIL ALL NIOBIUM HAS REACTED WITH THE MOLTEN TIN AND BEEN CONVERTED TO NB3SN; COOLING THE REACTION MASS FOR SO IDIFICATION; MECHANICALLY DISTINTEGRATING THE MASS TO POWDER; IMMERSING THE POWDER IN CONCENTRATED HYDROCHLORIC ACID WHEREBY NONREACTED TIN IS DISSOLVED, SEPARATING THE SOLID NB3SN FROM THE TIN CHLORIDE SOLUTION FORMED; RINSING THE NB3SN FROM THE TIN CHLORIDE SOLUTION HOL; DRYING THE NBRSN; AND SINTERING THE NB3SN IN AN INERT ATMOSPHERE AT A TEMPERATURE OF BETWEEN 900 AND 1300* C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |