US3288793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-tetrahydrofurfuryl-, 2-aliphatic-, and 2-aliphatic ether-sulfonamido-5-alkoxy-pyrimidines
Assignee: Bayer Pharma AG
•
Filing: 1965-07-29
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Granted: 1966-11-29
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Expires: 1985-07-29
Abstract
No abstract record available.
Inventors
- 👤 Priewe Hans
- 👤 Gutsche Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:31
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
2 - TETRAHYDROFURFURYLSULFONAMIDO-5-METHOXYPYRILMIDINE. DINE. 5. 2-N-BUTYLSULFONAMIDO-5-METHOXYPYRIMIDINE. 15. 2 - ISOPROPOXYETHOXYETHYLSULFONAMIDO - 5-METHOXYPYRIMIDINE.
Claim 2
Dependent Claim
12 words
2 - TETRAHYDROFURFURYLSULFONAMIDO-5-METHOXYPYRILMIDINE. DINE. 5. 2-N-BUTYLSULFONAMIDO-5-METHOXYPYRIMIDINE. 15. 2 - ISOPROPOXYETHOXYETHYLSULFONAMIDO - 5-METHOXYPYRIMIDINE.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |