US3058802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of inorganic selenides and tellurides
Assignee: Monsanto Chemicals Ltd
•
Filing: 1958-06-13
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Granted: 1962-10-16
•
Expires: 1978-06-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Kulifay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
C; C01; C01B; C01B19/00; C01B19/007; C01P; C01P2002/00; C01P2002/70; C01P2002/77
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
METHOD FOR THE PREPARATION OF MERCURY TELLURIDE, WHICH COMPRISES PRECIPITATING DISSOLVED MERCURY AND TELLURIUM IONS BY ADMIXTURE WITH AQUEOUS AMMONIACAL HYDRAZINE DIHYDROCHLORIDE IN THE PROPORTION OF FROM 0.1 TO 25.0 MOLECULAR WEIGHTS PER ATOMIC WEIGHT OF THE SAID TELLURIUM AND ISOLATING THE DESIRED COMPOUND FROM THE MIXTURE.
Claim 2
Dependent Claim
47 words
METHOD FOR THE PREPARATION OF MERCURY TELLURIDE, WHICH COMPRISES PRECIPITATING DISSOLVED MERCURY AND TELLURIUM IONS BY ADMIXTURE WITH AQUEOUS AMMONIACAL HYDRAZINE DIHYDROCHLORIDE IN THE PROPORTION OF FROM 0.1 TO 25.0 MOLECULAR WEIGHTS PER ATOMIC WEIGHT OF THE SAID TELLURIUM AND ISOLATING THE DESIRED COMPOUND FROM THE MIXTURE.
References Cited (Backward Citations)
US2534562A
Cited
US2860954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |