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US3346562A
Expired / Lapsed
US
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Method for the production of ribonucleoside-5'-phosphate
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1966-05-31
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Granted: 1967-10-10
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Honjo Mikio
- 👤 Marumoto Ryuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:57
CPC Classifications
C; C07; C07H; C07H1/00; C07H1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A METHOD FOR PRODUCING RIBONUCLEOSIDE-5''-PHOSPHATE FROM THE CORRESPONDING RIBONUCLEOSIDE, WHICH COMPRISES ALLOWING THE RIBONUCLEOSIDE TO REACT WITH ALIPHATIC KETONE HAVING 3 TO 6 CARBON ATOMS AND HAVING THE FORMULA
Claim 2
Independent Claim
29 words
A METHOD FOR PRODUCING RIBONUCLEOSIDE-5''-PHOSPHATE FROM THE CORRESPONDING RIBONUCLEOSIDE, WHICH COMPRISES ALLOWING THE RIBONUCLEOSIDE TO REACT WITH ALIPHATIC KETONE HAVING 3 TO 6 CARBON ATOMS AND HAVING 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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |