US2852506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing aminodeoxyglycosidopurines
Assignee: Wyeth Holdings LLC
•
Filing: 1955-10-31
•
Granted: 1958-09-16
•
Expires: 1975-10-31
Abstract
No abstract record available.
Inventors
- 👤 Goldman Leon
- 👤 Joseph W Marsico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:31
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/16; C07D; C07D473/00; C07D473/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A METHOD OF PREPARING AMINODEOXYGLOCISIDOPUTINES OF THE FORMULA:
Claim 2
Independent Claim
8 words
A METHOD OF PREPARING AMINODEOXYGLOCISIDOPUTINES OF THE FORMULA:
References Cited (Backward Citations)
US607028A
Cited
US2746961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |