Patent US3206278A successfully refreshed from Google Patents.
US3206278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving the properties of a compacted form of sodium cyanide crystals
Assignee: EIDP Inc
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Filing: 1962-01-25
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Granted: 1965-09-14
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Expires: 1982-01-25
Abstract
No abstract record available.
Inventors
- 👤 Charles P Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:32
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/08; C01C3/10; Y; Y10; Y10S; Y10S423/00; Y10S423/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR IMPROVING THE PROPERTIES OF A COMPACTED FORM OF SODIUM FORM OF SODIUM CYCRYSTALS OF AT LEAST 96.0% BY WEIGHT PURITY AND CONTAINING AT LEAST 0.1% BY WEIGHT OF ALKALI METAL HYDROXIDE WHICH COMPRISES HEATING SAID COMPACTED FORM FOR AT LEAST 15 MINUTES AT A TEMPERATURE BELOW THE FUSION POINT WITHIN THE RANGE OF FROM 350-450* C., AND THEN COOLING SAID COMPOUND FORM AT THE CONCLUSION OF SAID TREATMENT; THE AMOUNT OF SAID ALKALI METAL HYDROXIDE BEING SUFFICIENT TO PROVIDE 0.1-1.0% BY WEIGHT IN SAID COMPACTED FORM AFTER SAID TREATMENT.
Claim 2
Dependent Claim
92 words
A PROCESS FOR IMPROVING THE PROPERTIES OF A COMPACTED FORM OF SODIUM FORM OF SODIUM CYCRYSTALS OF AT LEAST 96.0% BY WEIGHT PURITY AND CONTAINING AT LEAST 0.1% BY WEIGHT OF ALKALI METAL HYDROXIDE WHICH COMPRISES HEATING SAID COMPACTED FORM FOR AT LEAST 15 MINUTES AT A TEMPERATURE BELOW THE FUSION POINT WITHIN THE RANGE OF FROM 350-450* C., AND THEN COOLING SAID COMPOUND FORM AT THE CONCLUSION OF SAID TREATMENT; THE AMOUNT OF SAID ALKALI METAL HYDROXIDE BEING SUFFICIENT TO PROVIDE 0.1-1.0% BY WEIGHT IN SAID COMPACTED FORM AFTER SAID TREATMENT.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |