US3341541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes and intermediates for pyrimidine derivatives
Assignee: F Hoffmann La Roche AG
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Filing: 1965-07-09
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Granted: 1967-09-12
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Hoffer Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:15
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/30; A; A23; A23K; A23K20/00; A23K20/10; A23K20/116; A23K20/137; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; A61K31/63; A61K31/635; C07C; C07C255/00; C07D239/46; C07D239/48; C07D239/49; C07D239/52; C07D239/54; C07D239/545; C07D239/553
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
38 words
A COMPOUND OF THE FORMULA 1-(R-O-CH(-O-R'')-CH(-CN)-CH2-),2-R1,3-R2,4-R3,5-R4-BENZENE WHEREIN R1 IS HYDROGEN, METHYL, CHLORINE, OR METHOXY; R2 IS HYDROGEN, CHLORINE, OR METHOXY, R3 AND R4 ARE EACH EITHER HALOGEN, METHYL, OR LOWER ALKOXY; AND R AND R'' ARE LOWER ALKYL.
Claim 4
Dependent Claim
38 words
A COMPOUND OF THE FORMULA 1-(R-O-CH(-O-R'')-CH(-CN)-CH2-),2-R1,3-R2,4-R3,5-R4-BENZENE WHEREIN R1 IS HYDROGEN, METHYL, CHLORINE, OR METHOXY; R2 IS HYDROGEN, CHLORINE, OR METHOXY, R3 AND R4 ARE EACH EITHER HALOGEN, METHYL, OR LOWER ALKOXY; AND R AND R'' ARE LOWER ALKYL.
References Cited (Backward Citations)
US3049544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |