Patent US2568778A successfully refreshed from Google Patents.
US2568778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary-aminoalkyl-alpha-arylalpha-(4-quinolyl) acetates and amides and their preparation
Assignee: STWB Inc
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Filing: 1948-05-28
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Granted: 1951-09-25
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Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
- 👤 Royal A Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:06
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/04; C07D215/12; C07D215/16; C07D215/18; C07D401/00; C07D401/02; C07D401/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
10 words
A PROCESS FOR PREPARING A BASIC 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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |