Patent US3781328A successfully refreshed from Google Patents.
US3781328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxy-alkyl-carboxylic acid compounds
Assignee: Roche Diagnostics GmbH
•
Filing: 1972-09-07
•
Granted: 1973-12-25
•
Expires: 1992-09-07
Abstract
Abstract NOVEL PHENOXY-ALKYL-CARBOXYLIC ACID COMPOUNDS OF THE FORMULA: (R1,R2-PHENYL)-CO-NH-(CH2)N-(1,4-PHENYLENE)-O-C(-R3)(-R4)- AND THE PHARMACOLOGICAL COMPATIBLE SALTS THEREOF, ARE REMARKABLY EFFECTIVE IN LOWERING THE SERUM LIPID LEVEL AND CHOLESTEROL LEVEL WITHOUT INDUCING UNDESIRABLE SIDE EFFECTS. R1 AND R2, WHICH MAY BE THE SAME OR DIFFERENT, ARE HYDROGEN, HALOGEN, LOWER ALKYL OR LOWER ALKOXY; R3 AND R4, WHICH MAY BE THE SAME OR DIFFERENT, ARE HYDROGEN OR LOWER ALKYL; N IS 1, 2 OR 3; AND Z IS HYDROXYL OR LOWER ALKOXY; WHEREIN CO-Z
Inventors
- 👤 E Witte
- 👤 K Stach
- 👤 H Stork
- 👤 M Thiel
- 👤 F Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:10
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/21; A61K31/215; A61K31/216; C; C07; C07C; C07C233/00; C07C233/64; C07C233/67; C07C233/68; C07C233/73; C07C235/00; C07C235/42; C07C235/44; C07C235/48; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |