US2650894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Riboflavin-monoborate and process for preparation thereof
Assignee: Janssen Pharmaceuticals Inc
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Filing: 1948-06-16
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Granted: 1953-09-01
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Expires: 1968-06-16
Abstract
No abstract record available.
Inventors
- 👤 Iii Richard De Mott Fine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:51
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; A61K31/519; A61K31/525; C; C07; C07D; C07D475/00; C07D475/12; C07D475/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
AS A PRODUCT HAVING THERAPEUTIC VALUE, AN ALKALI METAL SALT OF RIBOFLAVIN MONOBORATE HAVING THE EMPIRICAL FORMULA C17H20OANMB, WHEREIN M IS AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, AND LITHIUM.
Claim 2
Dependent Claim
34 words
AS A PRODUCT HAVING THERAPEUTIC VALUE, AN ALKALI METAL SALT OF RIBOFLAVIN MONOBORATE HAVING THE EMPIRICAL FORMULA C17H20OANMB, WHEREIN M IS AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, AND LITHIUM.
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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |