Patent US2982051A successfully refreshed from Google Patents.
US2901484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-quinoliniums
Assignee: Abbott Laboratories
•
Filing: 1957-03-04
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Granted: 1959-08-25
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Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Richard U Schock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:02
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07D215/42; C07D215/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
CHEMICAL COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
CHEMICAL COMPOUNDS HAVING 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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |