US2875194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of 5-amino-d-ribofuranose
Assignee: Wyeth Holdings LLC
•
Filing: 1955-10-05
•
Granted: 1959-02-24
•
Expires: 1975-10-05
Abstract
No abstract record available.
Inventors
- 👤 Baker Bernard Randall
- 👤 Kissman Henry Marcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:32
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H19/00; C07H19/02; C07H19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
5 words
COMPOUNDS HAVING THE GENERAL 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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |