US3201388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing 5'-ribonucleotides
Assignee: Ajinomoto Co Inc
•
Filing: 1963-04-18
•
Granted: 1965-08-17
•
Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 Tsuchiya Yoshio
- 👤 Takenishi Tadao
- 👤 Kato Tetsuya
- 👤 Mori Hisao
- 👤 Yoshikawa Masaharu
- 👤 Ichikawa Takehiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:22
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/06; A; A23; A23L; A23L27/00; A23L27/20; A23L27/23; C07H1/00; C07H1/02; C07H19/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A METHOD OF PREPARING A 5''-RIBONUCLEOTIDE FROM THE CORRESPONDING RIBONUCLEOSIDE WHICH COMPRISES: (A) REACTING SAID RIBONUCLEOSIDE WITH PHOSPORUS OXYCHLORIDE IN THE PRESENCE OF A KETONE OF THE FORMULA
Claim 2
Independent Claim
28 words
A METHOD OF PREPARING A 5''-RIBONUCLEOTIDE FROM THE CORRESPONDING RIBONUCLEOSIDE WHICH COMPRISES: (A) REACTING SAID RIBONUCLEOSIDE WITH PHOSPORUS OXYCHLORIDE IN THE PRESENCE OF A KETONE OF THE FORMULA
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |