US2710243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of thiosemicarbazide and isomers thereof
Assignee: Individual
•
Filing: 1950-01-05
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Granted: 1955-06-07
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Expires: 1970-01-05
Abstract
No abstract record available.
Inventors
- 👤 Swimmer Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:10
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3014; C; C01; C01B; C01B21/00; C01B21/082; C01B21/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A PROCESS FOR THE PRODUCTION OF HYDRAZINE THIOCYANATE COMPRISING ADMIXING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE AND HYDRAZINE HYDRATE WITH AN APPROXIMATELY EQUIMOLECULAR QUANTITY OF AMMONIUM THIOCYANATE, AND REMOVING THE AMMONIA PRODUCED AND ANY WATER PRESENT AT A TEMPERATURE BELOW THE BOILING POINT OF THE REACTION MIXTURE.
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) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |