US3108097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ehnojs
Assignee: —
•
Filing: —
•
Granted: 1963-10-22
•
Expires: 1980-10-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:10
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/15; C07D285/16; C07D285/18; C07D285/20; C07D285/22; C07D285/24; C07D285/26; C07D285/28; C07D417/00; C07D417/02; C07D417/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A METHOD FOR THE PREPARATION OF 7-SULFAMYL-3,4-DIHYDRO-1,2,4-BENZOTHIADIAZINE-1,1-DIOXIDES, OF THE FORMULA:
Claim 2
Independent Claim
10 words
A METHOD FOR THE PREPARATION OF 7-SULFAMYL-3,4-DIHYDRO-1,2,4-BENZOTHIADIAZINE-1,1-DIOXIDES, OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |