Patent US3147273A successfully refreshed from Google Patents.
US3147273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 2h-isothiazolo [4, 5-b] indol-3 (4h)-one 1-oxide compounds and their preparation
Assignee: Pharmacia and Upjohn Co
•
Filing: 1963-05-02
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Granted: 1964-09-01
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Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Szmuszkovicz Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:58
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA:
Claim 4
Dependent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE 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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |