US2635102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boron derivatives of ascorbic acid
Assignee: Individual
•
Filing: 1951-08-09
•
Granted: 1953-04-14
•
Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 Simon L Ruskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:47
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A BORON-ASCORBIC ACID COMPOUND WHICH IS THE REACTION PRODUCT OF BORIC ACID AND A MEMBER OF THE GROUP CONSISTING OF ASCORBIC ACID AND ITS METAL SALTS.
Claim 2
Dependent Claim
26 words
A BORON-ASCORBIC ACID COMPOUND WHICH IS THE REACTION PRODUCT OF BORIC ACID AND A MEMBER OF THE GROUP CONSISTING OF ASCORBIC ACID AND ITS METAL SALTS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |