Patent US3839433A successfully refreshed from Google Patents.
US3839433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adamantylcarboxamidophenylalkanoic acids and esters thereof
Assignee: Novartis Corp
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Filing: 1972-12-01
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Granted: 1974-10-01
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Expires: 1992-12-01
Abstract
Abstract 1. A COMPOUND OF THE FORMULA ADAMANT-1-YL-CO-NH-(PHENYLENE(-R3)(-R4))-CH(-R2)-(CH2)N- COO-R1 WHEREIN R1 IS HYDROGEN OR LOWER ALKYL; R2 IS HYDROGEN OR LOWER ALKYL; R3 AND R4 ARE HYDROGEN, FLUORINE, CHLORINE, BROMINE LOWER ALKYL, LOWER ALKOXY, OR TRIFLUOROMETHYL; AND N IS 0 TO 1.
Inventors
- 👤 J Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:50
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/195; A61K31/21; A61K31/215; A61K31/235; A61K31/24; C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |