Patent US2852518A successfully refreshed from Google Patents.
US2852518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Di-substituted quinoline compounds
Assignee: Parke Davis and Co LLC
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Filing: 1957-05-23
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Granted: 1958-09-16
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Expires: 1977-05-23
Abstract
No abstract record available.
Inventors
- 👤 Marcus S Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:30
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07D215/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND OF THE CLASS CONSISTING OF 6-B-HYDROXYETHOXY-8-DIISOBUTYLAMINOETHYLAMINOQUINOLINE AND NONTOXIC ACID ADDITION SALTS THEREOF.
Claim 2
Dependent Claim
14 words
A COMPOUND OF THE CLASS CONSISTING OF 6-B-HYDROXYETHOXY-8-DIISOBUTYLAMINOETHYLAMINOQUINOLINE AND NONTOXIC ACID ADDITION SALTS THEREOF.
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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |