US3043892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of organic compounds with werner complexes
Assignee: Union Oil Company of California
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Filing: 1959-12-28
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Granted: 1962-07-10
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 William D Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:44
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/36; C07C; C07C13/00; C07C15/00; C07C15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR RECOVERING AN ORGANIC COMPOUND FROM A CLATHRATE THEREOF WITH A WERNER COMPLEX CONSISTING OF A SALT OF A METAL OF ATOMIC NUMBER ABOVE 12 COORDANATED WITH AT LEAST 2 MOL PROPORTIONS OF A HETEROCYCLIC NITROGEN BASE, WHICH COMPRISES DISSOLVING SAID CLATHRATE IN AN AQUEOUS SOLUTION OF A NITROGEN BASE HAVING A DISSOCIATION CONSTANT WHICH IS (1) GREATER THAN ABOUT 10-6, AND (2) GREATER THAN THE DISSOCIATION CONSTANT OF THE HETEROCYCLIC BASE OF SAID WERNER COMPLEX, AND SEPARATING SAID ORGANIC COMPOUND FROM THE AQUEOUS SOLUTION OF WERNER COMPLEX.
Claim 2
Independent Claim
90 words
A METHOD FOR RECOVERING AN ORGANIC COMPOUND FROM A CLATHRATE THEREOF WITH A WERNER COMPLEX CONSISTING OF A SALT OF A METAL OF ATOMIC NUMBER ABOVE 12 COORDANATED WITH AT LEAST 2 MOL PROPORTIONS OF A HETEROCYCLIC NITROGEN BASE, WHICH COMPRISES DISSOLVING SAID CLATHRATE IN AN AQUEOUS SOLUTION OF A NITROGEN BASE HAVING A DISSOCIATION CONSTANT WHICH IS (1) GREATER THAN ABOUT 10-6, AND (2) GREATER THAN THE DISSOCIATION CONSTANT OF THE HETEROCYCLIC BASE OF SAID WERNER COMPLEX, AND SEPARATING SAID ORGANIC COMPOUND FROM THE AQUEOUS SOLUTION OF WERNER COMPLEX.
References Cited (Backward Citations)
US2798891A
Cited
US2905730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |