Patent US3075977A successfully refreshed from Google Patents.
US3075977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethers of 3-oxa- and 3-thia-9-azabicyclo-[3.3.1]-nonan-7-ol
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1960-04-07
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Granted: 1963-01-29
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Expires: 1980-04-07
Abstract
No abstract record available.
Inventors
- 👤 Charles L Zirkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:28
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
CHEMICAL COMPOUNDS OF THE CLASS CONSISTING OF A FREE BASE, ITS NONTOXIC ACID ADDITION SALTS AND ITS NONTOXIC QUATERNARY AMMONIUM SALTS FORMED WITH A PHARMACOLOGICALLY ACCEPTABLE ORGANIC ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SULFURIC, HYDROHALIC AND AROMATIC SULFONIC ACID, THE FREE BASE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
50 words
CHEMICAL COMPOUNDS OF THE CLASS CONSISTING OF A FREE BASE, ITS NONTOXIC ACID ADDITION SALTS AND ITS NONTOXIC QUATERNARY AMMONIUM SALTS FORMED WITH A PHARMACOLOGICALLY ACCEPTABLE ORGANIC ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SULFURIC, HYDROHALIC AND AROMATIC SULFONIC ACID, THE FREE BASE HAVING THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
7 words
A CHEMICAL COMPOUND HAVING THE FOLLOWING FORMULA:
Claim 4
Dependent Claim
7 words
A CHEMICAL COMPOUND HAVING THE FOLLOWING 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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |