US2970144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of 9-alkyl-3-oxa and 3-thia-9-azabicyclo [3. 3. 1]-nonan-7-ol
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1957-12-11
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Granted: 1961-01-31
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Expires: 1977-12-11
Abstract
No abstract record available.
Inventors
- 👤 Charles L Zirkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:45
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
CHEMICAL COMPOUND HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
6 words
CHEMICAL COMPOUND HAVING THE STRUCTURAL FORMULA:
Claim 3
Dependent Claim
30 words
CHEMICAL COMPOUNDS OF THE CLASS CONSISTING OF A FREE BASE AND THE NONTOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION AND QUATERNARY AMMONIUM SALTS THEREOF, THE FREE BASE HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 4
Dependent Claim
30 words
CHEMICAL COMPOUNDS OF THE CLASS CONSISTING OF A FREE BASE AND THE NONTOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION AND QUATERNARY AMMONIUM SALTS THEREOF, THE FREE BASE HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |