US2844514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of nucleotides
Assignee: Pabst Brewing Co
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Filing: 1953-11-04
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Granted: 1958-07-22
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Expires: 1973-11-04
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Morell
- 👤 Samuel H Lipton
- 👤 Frieden Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:21
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/26; C12P19/28; C12P19/30; C07; C07H; C07H1/00; C07H1/02; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE PROCESS WHICH COMPRISES HYDROLYZING RIBONUCLEIC ACID WITH MAGNESIUM OXIDE AT A TEMPERATURE OF ABOUT 140-150*C. SO THAT THE FINAL PH IS ABOUT 8-8.5 TO PRODUCE A MIXTURE OF RIBONUCLEOSIDES, PRECIPITATING NUCLEOTIDES PRESENT IN SAID MIXTURE WITH A SOLUBLE SALT OF LEAD, SEPARATING THE PRECIPITATE, CRYSTALLIZING THE RESULTING RIBONUCLEOSIDE MIXTURE TO PRODUCE A CRYSTAL FRACTION AND A MOTHER LIQUOR FRACTION, AND TREATING AT LEAST ONE OF SAID FRACTIONS SEPARATELY WITH INORGANIC PHOSPHATE, YEAST ENZYMES AND A SUGAR AT A TEMPERATURE OF ABOUT 22-28*C. AND ABOUT UNTIL A MAXIMUM CONSUMPTION OF PHOSPHATE HAS TAKEN PLACE TO PRODUCE A MIXTURE OF RIBONUCLEOTIDES.
Claim 2
Dependent Claim
100 words
THE PROCESS WHICH COMPRISES HYDROLYZING RIBONUCLEIC ACID WITH MAGNESIUM OXIDE AT A TEMPERATURE OF ABOUT 140-150*C. SO THAT THE FINAL PH IS ABOUT 8-8.5 TO PRODUCE A MIXTURE OF RIBONUCLEOSIDES, PRECIPITATING NUCLEOTIDES PRESENT IN SAID MIXTURE WITH A SOLUBLE SALT OF LEAD, SEPARATING THE PRECIPITATE, CRYSTALLIZING THE RESULTING RIBONUCLEOSIDE MIXTURE TO PRODUCE A CRYSTAL FRACTION AND A MOTHER LIQUOR FRACTION, AND TREATING AT LEAST ONE OF SAID FRACTIONS SEPARATELY WITH INORGANIC PHOSPHATE, YEAST ENZYMES AND A SUGAR AT A TEMPERATURE OF ABOUT 22-28*C. AND ABOUT UNTIL A MAXIMUM CONSUMPTION OF PHOSPHATE HAS TAKEN PLACE TO PRODUCE A MIXTURE OF RIBONUCLEOTIDES.
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |