US3275635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 2-benzenesulfonamide-5-alkyl (or alkoxy) pyrimidine compounds
Assignee: Bayer Pharma AG
•
Filing: 1961-10-12
•
Granted: 1966-09-27
•
Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Hans Priewe
- 👤 Klaus Gutsche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:10
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/47; C07D239/69
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
6 words
A SULFONAMIDE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
A SULFONAMIDE COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
15 words
A SALT OF A SULFONAMIDE COMPOUND ACCORDING TO CLAIM 1 WITH A PHYSIOLOGICALLY TOLERATED BASE.
References Cited (Backward Citations)
US2778830A
Cited
US2484606A
Cited
US2529840A
Cited
US2519314A
Cited
US2888337A
Cited
US2938903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |