Patent US2964384A successfully refreshed from Google Patents.
US2964384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of hydrogen cyanide
Assignee: Dow Chemical Co
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Filing: 1957-12-23
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Granted: 1960-12-13
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas W Mulcihy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:01
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/02; C01C3/0208; C01C3/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A METHOD OF PRODUCING HCN WHICH COMPRISES INTERMIXING NITROGEN AND A HYDROCARBON IN THE VAPOR PHASE AND SUBJECTING THE MIXTURE SO OBTAINED TO THE ACTION OF A RADIANTLY HEATED SOLID SURFACE HAVING A UNIFORM NONFLUCTUATING TEMPERATURE BETWEEN 2200 AND 4000 DEGREES
Claim 2
Independent Claim
41 words
A METHOD OF PRODUCING HCN WHICH COMPRISES INTERMIXING NITROGEN AND A HYDROCARBON IN THE VAPOR PHASE AND SUBJECTING THE MIXTURE SO OBTAINED TO THE ACTION OF A RADIANTLY HEATED SOLID SURFACE HAVING A UNIFORM NONFLUCTUATING TEMPERATURE BETWEEN 2200 AND 4000 DEGREES
References Cited (Backward Citations)
US1050978A
Cited
US2625463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |