Patent US2813067A successfully refreshed from Google Patents.
US2813067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrazine manufacture
Assignee: Sunoco Inc
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Filing: 1956-06-29
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Granted: 1957-11-12
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 Archibald P Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:25
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
THE METHOD OF MAKING HYDRAZINE WHICH COMPRISES SUBJECTING A NON-AQUEOUS SOLUTION COMPRISING AN ALKALINE EARTH METAL AMIDE IN FORMAMIDE TO DIRECT CURRENT ELECTROLYSIS, AND SEPARATING HYDRAZINE FROM THE ELECTROLYSIS SOLUTION.
Claim 2
Independent Claim
30 words
THE METHOD OF MAKING HYDRAZINE WHICH COMPRISES SUBJECTING A NON-AQUEOUS SOLUTION COMPRISING AN ALKALINE EARTH METAL AMIDE IN FORMAMIDE TO DIRECT CURRENT ELECTROLYSIS, AND SEPARATING HYDRAZINE FROM THE ELECTROLYSIS SOLUTION.
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) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |