US2647837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing hops by catalytic isomerization of humulon
Assignee: CESKOSLOVENSKE PIVOVARY LIHOVA
•
Filing: 1951-04-26
•
Granted: 1953-08-04
•
Expires: 1971-04-26
Abstract
No abstract record available.
Inventors
- 👤 Salac Vaclav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:49
CPC Classifications
C; C12; C12C; C12C3/00; C12C3/04; C12C3/08; C12C3/12; C12C7/00; C12C7/20; C12C7/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR THE PREPARATION OF WORT BY TREATING HOP CONES FOR A CATALYTIC ISOMERIZATION OF HUMULON COMPRISING BOILING SAID HOP CONES IN WATER TO PRODUCE AN EXTRACT THEREOF, DRAWING OFF SAID EXTRACT FROM SAID DECOCTED HOP CONES AND MIXING SAID EXTRACT WITH A QUANTITY OF AN ALKALINE SOLUTION OF A WEAKLY ACID REACTIVE MEDIUM TO MAINTAIN IN SAID EXTRACT DURING ITS ISOMERIZATION AN ACIDITY OF A PH EQUAL TO 6.2 TO 7.5. BOILING SAID EXTRACT FOR A DURATION OF 10 MINUTES TO 120 MINUTES AND THEN ADDING SAID ISOMERIC EXTRACT AND SAID DECOCTED HOP CONES TO THE BOILING WORT.
Claim 2
Independent Claim
100 words
A METHOD FOR THE PREPARATION OF WORT BY TREATING HOP CONES FOR A CATALYTIC ISOMERIZATION OF HUMULON COMPRISING BOILING SAID HOP CONES IN WATER TO PRODUCE AN EXTRACT THEREOF, DRAWING OFF SAID EXTRACT FROM SAID DECOCTED HOP CONES AND MIXING SAID EXTRACT WITH A QUANTITY OF AN ALKALINE SOLUTION OF A WEAKLY ACID REACTIVE MEDIUM TO MAINTAIN IN SAID EXTRACT DURING ITS ISOMERIZATION AN ACIDITY OF A PH EQUAL TO 6.2 TO 7.5. BOILING SAID EXTRACT FOR A DURATION OF 10 MINUTES TO 120 MINUTES AND THEN ADDING SAID ISOMERIC EXTRACT AND SAID DECOCTED HOP CONES TO THE BOILING WORT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |