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US2959580A Expired / Lapsed US ⏱️ 0.0 years remaining

Formation of inclusion compounds

Assignee: University of Minnesota Twin Cities
•
Filing: 1956-10-17
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Granted: 1960-11-08
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Expires: 1976-10-17
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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)

US2642424A Cited
US2774752A Cited
US2020685A Cited
US2596344A Cited
US2594481A Cited
US2727025A Cited
US2756222A Cited
US2830039A Cited

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

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