US3516985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indole ribofuranosides
Assignee: Merck and Co Inc
•
Filing: 1968-06-28
•
Granted: 1970-06-23
•
Expires: 1988-06-28
Abstract
No abstract record available.
Inventors
- 👤 Edward Walton
- 👤 Frederick W Holly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:39
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/044; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2637727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |