US2830904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brewing process
Assignee: Luneburger Kronenbrauerei A G
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Filing: 1954-01-18
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Granted: 1958-04-15
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Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 Arentoft Holger
- 👤 Arentoft Hildegard
- 👤 Mollering Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:02
CPC Classifications
C; C12; C12C; C12C3/00; C12C3/04; C12C3/08; C12C11/00; C12C11/003; C12C11/11; C12C3/085; C12C7/00; C12C7/20; C12C7/205; C12C7/28; C12C7/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A BREWING PROCESS, THE STEPS OF SUBJECTING HOPS IN A COLD AQUEOUS LIQUID AT A TEMPERATURE NOT EXCEEDING 95* F. TO ULTRASONIC ENERGY THEREBY PARTIALLY EXTRACTING SAID HOPS AND FORMING A COLD EXTRACT SOLUTION, SEPARATING THE PARTIALLY EXTRACTED HOPS FROM THE THUS-OBTAINED COLD EXTRACT SOLUTION, SUBJECTING SAID PARTIALLY EXTRACTED HOPS IN A WARM AQUEOUS LIQUID AT A TEMPERATURE EXCEDDING 150* F. TO ULTRASONIC ENERGY THEREBY FURTHER EXTRACTING SAID PARTIALLY EXTRACTED HOPS AND FORMING A WARM EXTRACT SOLUTION, SEPARATING THE SPENT HOPS FROM THE THUS-OBTAINED WARM EXTRACT SOLUTION, FORMING A FIRST BOILING MIXTURE OF SAID SPENT HOPS AND WORT, FORMING A SECOND BOILING MIXTURE OF SAID THUS-OBTAINED WARM EXTRACT SOLUTION AND SAID FIRST BOILING MIXTURE AFTER THE SAME HAS BOILED FOR APPROXIMATELY ONE HOUR, COOLING SAID SECOND BOILING MIXTURE, AND FORMING A THIRD MIXTURE OF SAID THUS-OBTAINED COLD EXTRACT SOLUTION AND SAID SECOND MIXTURE AFTER THE TEMPERATURE THEREOF HAS DROPPED TO APPROXIMATELY 160*F.
Claim 2
Dependent Claim
153 words
IN A BREWING PROCESS, THE STEPS OF SUBJECTING HOPS IN A COLD AQUEOUS LIQUID AT A TEMPERATURE NOT EXCEEDING 95* F. TO ULTRASONIC ENERGY THEREBY PARTIALLY EXTRACTING SAID HOPS AND FORMING A COLD EXTRACT SOLUTION, SEPARATING THE PARTIALLY EXTRACTED HOPS FROM THE THUS-OBTAINED COLD EXTRACT SOLUTION, SUBJECTING SAID PARTIALLY EXTRACTED HOPS IN A WARM AQUEOUS LIQUID AT A TEMPERATURE EXCEDDING 150* F. TO ULTRASONIC ENERGY THEREBY FURTHER EXTRACTING SAID PARTIALLY EXTRACTED HOPS AND FORMING A WARM EXTRACT SOLUTION, SEPARATING THE SPENT HOPS FROM THE THUS-OBTAINED WARM EXTRACT SOLUTION, FORMING A FIRST BOILING MIXTURE OF SAID SPENT HOPS AND WORT, FORMING A SECOND BOILING MIXTURE OF SAID THUS-OBTAINED WARM EXTRACT SOLUTION AND SAID FIRST BOILING MIXTURE AFTER THE SAME HAS BOILED FOR APPROXIMATELY ONE HOUR, COOLING SAID SECOND BOILING MIXTURE, AND FORMING A THIRD MIXTURE OF SAID THUS-OBTAINED COLD EXTRACT SOLUTION AND SAID SECOND MIXTURE AFTER THE TEMPERATURE THEREOF HAS DROPPED TO APPROXIMATELY 160*F.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |