Patent US3086945A successfully refreshed from Google Patents.
US3086945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic decomposition of 1, 1-dimethylhydrazine
Assignee: Engelhard Industries Inc
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Filing: 1959-07-16
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Granted: 1963-04-23
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Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Johann G E Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:59
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/04; C06B; C06B47/00; C06B47/02; C06B47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS FOR THE VAPOR PHASE DECOMPOSITION OF UNSYMMETRICAL DIMETHYLHYDRAZINE WHICH COMPRISES CONTACTING THE UNSYMMETRICAL DIMETHYLHYDRAZINE VAPORS WITH A PLATINUM GROUP METAL-CONTAINING CATALYST, AT REACTION TEMPERATURE.
Claim 2
Dependent Claim
26 words
A PROCESS FOR THE VAPOR PHASE DECOMPOSITION OF UNSYMMETRICAL DIMETHYLHYDRAZINE WHICH COMPRISES CONTACTING THE UNSYMMETRICAL DIMETHYLHYDRAZINE VAPORS WITH A PLATINUM GROUP METAL-CONTAINING CATALYST, AT REACTION TEMPERATURE.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |