US3183226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for transforming 1-beta-d-xylofuranosyluracil nucleosides into 1-beta-d-arabinofuranosyluracil nucleosides
Assignee: Pharmacia and Upjohn Co
•
Filing: 1961-01-10
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Granted: 1965-05-11
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Expires: 1981-01-10
Abstract
No abstract record available.
Inventors
- 👤 James H Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:21
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
THE PROCESS FOR PREPARING A 1-B-D-ARABINOFURANOSYLURACIL REPRESENTED BY THE FOLLOWING STRUCTURAL FORMULA
Claim 2
Dependent Claim
12 words
THE PROCESS FOR PREPARING A 1-B-D-ARABINOFURANOSYLURACIL REPRESENTED BY THE FOLLOWING STRUCTURAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |