Patent US3452039A successfully refreshed from Google Patents.
US3452039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 5-tetrazolyl benzothiophene compounds
Assignee: Bristol Myers Co
•
Filing: 1966-05-25
•
Granted: 1969-06-24
•
Expires: 1986-05-25
Abstract
No abstract record available.
Inventors
- 👤 Ronald D Buchanan
- 👤 Richard A Partyka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:39
CPC Classifications
C; C07; C07D; C07D409/00; C07D409/02; C07D409/04; A; A61; A61K; A61K31/00; A61K31/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US3337576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |