US3375244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 5'-nucleotides
Assignee: Asahi Kasei Corp
•
Filing: 1964-12-14
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Granted: 1968-03-26
•
Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Ouchi Shunji
- 👤 Sowa Tsuneo
- 👤 Yamada Hiraku
- 👤 Tsunoda Kozo
- 👤 Kurihara Masakazu
- 👤 Senoo Saburo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:12
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/06; C07H19/10; C07H1/00; C07H1/02; C07H19/16; C07H19/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR THE PRODUCTION OF 5''-NUCLEOTIDES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
11 words
A PROCESS FOR THE PRODUCTION OF 5''-NUCLEOTIDES HAVING THE GENERAL 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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |