US3219531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flavone derivatives
Assignee: IND CHIMIQUE SA
•
Filing: 1961-07-27
•
Granted: 1965-11-23
•
Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Blaise Rolland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/22; C07D311/26; C07D311/28; C07D311/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PROVITAMINIC P FACTOR IN DOSAGE UNITS CONSISTING OF A PHARMACEUTICALLY ACCEPTABLE CARRIER AND ABOUT 100 MILLIGRAMS OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF 5,7-DI-OXYACETIC ACID FLAVONE, THE SODIUM, POTASSIUM AND AMMONIUM SALTS OF SAID ACID.
Claim 2
Dependent Claim
40 words
A PROVITAMINIC P FACTOR IN DOSAGE UNITS CONSISTING OF A PHARMACEUTICALLY ACCEPTABLE CARRIER AND ABOUT 100 MILLIGRAMS OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF 5,7-DI-OXYACETIC ACID FLAVONE, THE SODIUM, POTASSIUM AND AMMONIUM SALTS OF SAID ACID.
References Cited (Backward Citations)
FR988832A
Cited
FR988833A
Cited
US2543674A
Cited
US2700047A
Cited
US2789930A
Cited
US2897211A
Cited
US2912358A
Cited
US2841526A
Cited
US2890225A
Cited
US2892845A
Cited
US2892846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |