US2865714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of anhydrous hydrazine
Assignee: Solomon R. Guggenheim Museum
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Filing: 1954-08-02
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Granted: 1958-12-23
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Expires: 1974-08-02
Abstract
No abstract record available.
Inventors
- 👤 Robell John
- 👤 Steinberg Meyer
- 👤 Elliott B Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:36
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN A PROCESS FOR PRODUCING ANHYDROUS HYDRAZINE IN WHICH A HYDRAZINE-CONTAINING COMPOUND IS THERMALLY DECOMPOSED WITHIN AN ANHYDROUS ALCOHOLIC SOLVENT FOR THE SEPARATION AND RECOVERY OF AN ANHYDROUS SOLUTION OF HYDRAZINE, THE IMPROVEMENT THAT COMPRISES EMPLOYING AS THE HYDRAZINE-CONTAINING COMPOUND A COMPLEX OF HYDRAZINE AND CARBON DIOXIDE SELECTED FROM THE GROUP CONSISTING OF CARBAZIC ACID, HYDRAZINIUM CARBAZATE, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
60 words
IN A PROCESS FOR PRODUCING ANHYDROUS HYDRAZINE IN WHICH A HYDRAZINE-CONTAINING COMPOUND IS THERMALLY DECOMPOSED WITHIN AN ANHYDROUS ALCOHOLIC SOLVENT FOR THE SEPARATION AND RECOVERY OF AN ANHYDROUS SOLUTION OF HYDRAZINE, THE IMPROVEMENT THAT COMPRISES EMPLOYING AS THE HYDRAZINE-CONTAINING COMPOUND A COMPLEX OF HYDRAZINE AND CARBON DIOXIDE SELECTED FROM THE GROUP CONSISTING OF CARBAZIC ACID, HYDRAZINIUM CARBAZATE, AND MIXTURES THEREOF.
References Cited (Backward Citations)
DE47600C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |