US3129056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing rare earth selenides and tellurides
Assignee: Nucor Corp
•
Filing: 1960-04-01
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Granted: 1964-04-14
•
Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 Hubert M Muir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; C; C01; C01B; C01B19/00; C01B19/007; C01P; C01P2006/00; C01P2006/10; C01P2006/32; C01P2006/33; C01P2006/34; C01P2006/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD OF PREPARING A GADOLINUM SELENIDE COMPOUND, COMPRISING SEALING GADOLINIUM AND SELENIUM IN DIVIDED FORM IN A CHAMBER CONTAINING AN INERT GAS AT A PRESSURE MATERIALLY BELOW ATMOSPHERIC, GRADUALLY AND SLOWLY RAISING THE TEMPERATURE OF THE CHAMBER FOR A PERIOD OF SEVERAL HOURS TO GENERATE VAPORS AND CAUSE A SLOW, CONTROLLED AND NON-EXPLOSIVE VAPOR REACTION TO TAKE PLACE BETWEEN THE TWO ELEMENTS, MAINTAINING THE TEMPERATURE OF THE CHAMBER FOR A PROLONGED PERIOD OF TIME SUFFICIENTLY HIGH TO SUBSTANTIALLY COMPLETE THE REACTION, THEREAFTER GRADUALLY COOLING THE CHAMBER, REMOVING THE RESULTING POWDERED REACTION PRODUCT FROM THE CHAMBER, HOMOGENIZING AND PRESSING THE RESULTING POWDERED REACTION PRODUCT INTO PELLETS AND ARE MELTING THE PELLETS IN AN INERT ATMOSPHERE.
Claim 2
Independent Claim
115 words
A METHOD OF PREPARING A GADOLINUM SELENIDE COMPOUND, COMPRISING SEALING GADOLINIUM AND SELENIUM IN DIVIDED FORM IN A CHAMBER CONTAINING AN INERT GAS AT A PRESSURE MATERIALLY BELOW ATMOSPHERIC, GRADUALLY AND SLOWLY RAISING THE TEMPERATURE OF THE CHAMBER FOR A PERIOD OF SEVERAL HOURS TO GENERATE VAPORS AND CAUSE A SLOW, CONTROLLED AND NON-EXPLOSIVE VAPOR REACTION TO TAKE PLACE BETWEEN THE TWO ELEMENTS, MAINTAINING THE TEMPERATURE OF THE CHAMBER FOR A PROLONGED PERIOD OF TIME SUFFICIENTLY HIGH TO SUBSTANTIALLY COMPLETE THE REACTION, THEREAFTER GRADUALLY COOLING THE CHAMBER, REMOVING THE RESULTING POWDERED REACTION PRODUCT FROM THE CHAMBER, HOMOGENIZING AND PRESSING THE RESULTING POWDERED REACTION PRODUCT INTO PELLETS AND ARE MELTING THE PELLETS IN AN INERT ATMOSPHERE.
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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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |