US3015539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cyanide salts
Assignee: EIDP Inc
•
Filing: 1957-07-08
•
Granted: 1962-01-02
•
Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 James M Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:06
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/08; C01C3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN THE PRODUCTION OF ALKALI METAL CYANIDE BY MIXING HYDROGEN CYANIDE VAPOR WITH AN AQUEOUS SOLUTION CONTAINING ALKALI METAL HYDROXIDE, THE PROCESS WHICH COMPRISES FEEDING HYDROGEN CYANIDE VAPOR INTO ONE END OF AN ELONGATED CHAMBER TO MAINTAIN A VAPOR ZONE, SPRAYING SUFFICIENT LIQUID CONSISTING ESSENTIALLY OF WATER INTO SAID VAPOR ZONE TO WET ALL OF THE SURFACE EXPOSED TO HYDROGEN CYANIDE VAPOR IN THE VAPOR ZONE, AND PASSING
Claim 2
Dependent Claim
68 words
IN THE PRODUCTION OF ALKALI METAL CYANIDE BY MIXING HYDROGEN CYANIDE VAPOR WITH AN AQUEOUS SOLUTION CONTAINING ALKALI METAL HYDROXIDE, THE PROCESS WHICH COMPRISES FEEDING HYDROGEN CYANIDE VAPOR INTO ONE END OF AN ELONGATED CHAMBER TO MAINTAIN A VAPOR ZONE, SPRAYING SUFFICIENT LIQUID CONSISTING ESSENTIALLY OF WATER INTO SAID VAPOR ZONE TO WET ALL OF THE SURFACE EXPOSED TO HYDROGEN CYANIDE VAPOR IN THE VAPOR ZONE, AND PASSING
References Cited (Backward Citations)
US2020902A
Cited
US2155315A
Cited
US2213211A
Cited
US2684231A
Cited
US2726139A
Cited
US2708151A
Cited
US2798794A
Cited
US2876066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |