US3098854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid addition salts of basically substituted flavones and preparation thereof
Assignee: Dr Med Hans Voigt Chem-Pharm Fabrik
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Filing: 1961-02-09
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Granted: 1963-07-23
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Expires: 1981-02-09
Abstract
No abstract record available.
Inventors
- 👤 Klosa Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:15
CPC Classifications
C; C07; C07D; C07D473/00; C07D473/02; C07D473/04; C07D473/06; C07D473/08; C07D311/00; C07D311/02; C07D311/04; C07D311/22; C07D311/26; C07D311/28; C07D311/30; C07D473/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
ACID ADDITION SALTS OF FLAVONES BASICALLY SUBSTITUTED IN THE 7-POSITION AND OF XANTHINE RING DERIVATIVE OF ACETIC ACID, SAID SALTS HAVING THE FORMULA
Claim 2
Dependent Claim
23 words
ACID ADDITION SALTS OF FLAVONES BASICALLY SUBSTITUTED IN THE 7-POSITION AND OF XANTHINE RING DERIVATIVE OF ACETIC ACID, SAID SALTS HAVING THE FORMULA
Claim 3
Dependent Claim
9 words
THE ACID ADDITION SALT OF THEOPHYLLIN-7-ACETIC ACID AND 7-(B-N-MORPHOLINETHOXY)-FLAVONE.
Claim 4
Dependent Claim
9 words
THE ACID ADDITION SALT OF THEOPHYLLIN-7-ACETIC ACID AND 7-(B-N-MORPHOLINETHOXY)-FLAVONE.
References Cited (Backward Citations)
DE1054091B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |