US2981682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of water soluble iron cyanide compounds using mercuric chloride catalyst
Assignee: LANCY LAB
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Filing: 1959-03-06
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Granted: 1961-04-25
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Expires: 1979-03-06
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Lancy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:03
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/58; C02F1/62; C02F1/64; C02F1/72; C02F1/76; Y; Y02; Y02W; Y02W10/00; Y02W10/30; Y02W10/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A METHOD OF CONDITIONING WASTE CONTAINING CYANIDE COMPOUNDS AND AT LEAST IRON CYANIDE WHICH COMPRISES, CHLORINATING THE WASTE AND COVERTING THE IRON CYANIDE INTO AN INTERMEDIATE IRON CYANIDE REACTION PRODUCT, AND COMPLETING THE CHLORINATION OF THE INTERMEDIATE IRON CYANIDE IN THE PRESENCE OF A MERCURY CHLORIDE CATALYST INTO A NON-TOXIC IRON COMPOUND.
Claim 2
Independent Claim
52 words
A METHOD OF CONDITIONING WASTE CONTAINING CYANIDE COMPOUNDS AND AT LEAST IRON CYANIDE WHICH COMPRISES, CHLORINATING THE WASTE AND COVERTING THE IRON CYANIDE INTO AN INTERMEDIATE IRON CYANIDE REACTION PRODUCT, AND COMPLETING THE CHLORINATION OF THE INTERMEDIATE IRON CYANIDE IN THE PRESENCE OF A MERCURY CHLORIDE CATALYST INTO A NON-TOXIC IRON COMPOUND.
References Cited (Backward Citations)
US1614523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |