US2905730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a clathrate complex
Assignee: Phillips Petroleum Co
•
Filing: 1954-09-02
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Granted: 1959-09-22
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Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 Gardner C Ray
- 👤 Clifford E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:17
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04; C07C; C07C7/00; C07C7/148; C07C7/152; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
A METHOD OF FORMING A CLATHRATE COMPLEX OF BENZENE WHICH COMPRISES ADMIXING TOGETHER NICKEL CYANIDE AND WATER AND ADDING SUFFICIENT AMMONIA, 11.0 MOLS AMMONIA PER MOL OF NICKEL CYANIDE, TO SUBSTANTIALLY COMPLETELY DISSOLVE THE NICKEL CYANIDE AND WITHOUT ANY SUBSEQUENT NEUTRALIZATION OF FREE AMMONIA AND THEN CONTACTING A MATERIAL COMPRISING SAID BENZENE AND A NON-CLATHRATABLE COMPOUND WITH THE REGENT THUS PREPARED.
References Cited (Backward Citations)
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US2732413A
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US1328938A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |