US2959580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of inclusion compounds
Assignee: University of Minnesota Twin Cities
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Filing: 1956-10-17
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Granted: 1960-11-08
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Expires: 1976-10-17
Abstract
No abstract record available.
Inventors
- 👤 Schlenk Hermann
- 👤 Donald M Sand
- 👤 Tillotson Jerry Ann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:05
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/59
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
146 words
A METHOD OF PROMOTING THE FORMATION OF INCLUSION COMPOUNDS BETWEEN A COMPLEX-FORMING HOST MOLECULE KNOWN TO REACT WITH STRAIGHT CARBON CHAIN STRUCTURES AND AN ORGANIC CHEMICAL SUBSTANCE SUBJECT TO AUTODETERIORATION AND AUTOCHANGE WHICH IS NORMALLY DIFFICULT TO INCLUDE IN THE COMPLEX-FORMING HOST MOLECULE AS A GUEST MOLECULE, SAID GUEST MOLECULE BEING COMPOSED PREDOMINANTLY OF A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF BRANCHED CARBON CHAIN STRUCTURES MORE HIGHLY BRANCHED THAN MONOMETHYL BRACHED AND CYCLIC CARBON STRUCTURES, WHICH METHOD COMPRISES INITIALLY REACTING THE GUEST COMPOUND WITH ANOTHER CHEMICAL SUBSTANCE TO ADD ONTO THE GUEST MOLECULE AS AN ANCHORING SUBSTITUENT A STRAIGHT CARABON CHAIN RADICAL HAVING A KNOWN AFFINITY FOR FORMING INCLUSION COMPOUNDS WITH THE COMPLEX-FORMING HOST COMPOUND WHILE MAINTAINING THE DESIRABLY USEFUL PROPERTIES OF THE GUEST COMPOUND SUBSTANTIALLY UNCHANGED AND THEN REACTING THIS NEWLY FORMED SUBSTANCE WITH THE COMPLEX-FORMING HOST MATERIAL TO FORM A STABLE INCLUSION COMPOUND.
References Cited (Backward Citations)
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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) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |