US3692787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted 2,4-diamino-5-benzyl pyrimidines
Assignee: SmithKline Beecham Corp
•
Filing: 1970-02-16
•
Granted: 1972-09-19
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Expires: 1990-02-16
Abstract
Abstract Compounds of the formula WHERE R is benzyl, alkoxy substituted benzyl, allyl, or halogenalkyl. The compounds are useful as antibacterial agents.
Inventors
- 👤 Barbara Roth
- 👤 Justina Strelitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:35
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/48; C07D239/49
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
4 words
2,4-Diamino-5-(3'',5''-dimethoxy-4''-( Beta -chloroethoxy)benzyl) pyrimidine.
Claim 2
Dependent Claim
4 words
2,4-Diamino-5-(3'',5''-dimethoxy-4''-( gamma -chloropropoxy)benzyl) pyrimidine.
Claim 3
Dependent Claim
1 words
2,4-diamino-5-(3'',5''-dimethoxy-4''-allyloxybenzyl)pyrimidine.
Claim 4
Dependent Claim
2 words
2,4-diamino-5-(3'',5''-dimethoxy-4''-(3'''',4'''',5'''' -trimethoxybenzyloxy)benzyl)pyrimidine.
Claim 5
Dependent Claim
1 words
2,4-diamino-5-(3'',5''-dimethoxy-4''-benzyloxybenzyl)pyrimidine.
References Cited (Backward Citations)
US3485840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |