US2562934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of isolating lupulon from hop resin
Assignee: Individual
•
Filing: 1949-01-18
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Granted: 1951-08-07
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Expires: 1969-01-18
Abstract
No abstract record available.
Inventors
- 👤 Michener Harold David
- 👤 Eugene F Jansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:11
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/06; A61K36/18; A61K36/185; A61K36/348; A61K36/3486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS COMPRISING STORING SOFT RESIN OF HOPS TO CRYSTALLIZE LUPULON THEREIN, SEPARATING THE CRYSTALS FROM THE RESIN TO PRODUCE AN IMPURE LUPULON FRACTION, EXTRACTING THE IMPURE FRACTION WITH HOT AQUEOUS ALKANOL HAVING A CONCENTRATION FROM ABOUT 65% TO ABOUT 75%, WHEREBY TO DISSOLVE THE LUPULON PRESENT IN SAID IMPURE FRACTION, AND SEPARATING LUPULON FROM THE EXTRACT.
Claim 2
Dependent Claim
57 words
A PROCESS COMPRISING STORING SOFT RESIN OF HOPS TO CRYSTALLIZE LUPULON THEREIN, SEPARATING THE CRYSTALS FROM THE RESIN TO PRODUCE AN IMPURE LUPULON FRACTION, EXTRACTING THE IMPURE FRACTION WITH HOT AQUEOUS ALKANOL HAVING A CONCENTRATION FROM ABOUT 65% TO ABOUT 75%, WHEREBY TO DISSOLVE THE LUPULON PRESENT IN SAID IMPURE FRACTION, AND SEPARATING LUPULON FROM THE EXTRACT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |