US2735866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing glucoheptonic
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/42; C07C51/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
PROCESS FOR PRODUCING GLUCOHEPTONIC ACID CONSISTING IN REACTING CALCIUM CYANIDE WITH A SOLUTION OF GLUCOSE IN THE PRESENCE OF A SLIGHT EXCESS OF LIME SUFFICIENT FOR MAINTAINING THE PH OF THE SOLUTION AT APPROXIMATELY 10 ELIMINATING ALL AMMONIA FROM SAID SOLUTION, AND MIXING THE ALKALINE SOLUTION OF CALCIUM GLUCOHEPTONATE OBTAINED WITH A WEAK SOLUTION OF OXALIC ACID SUFFICIENT FOR MAINTAINING THE PH OF THE SOLUTION A APPROXIMATELY 3.5 TO 4.5 FORMING GLUCOHEPTONIC ACID WITH A. 60 TO 70% CONTENT OF PURE AND COLORLESS CALCIUM GLUCHEPTONATE.
Claim 2
Dependent Claim
85 words
PROCESS FOR PRODUCING GLUCOHEPTONIC ACID CONSISTING IN REACTING CALCIUM CYANIDE WITH A SOLUTION OF GLUCOSE IN THE PRESENCE OF A SLIGHT EXCESS OF LIME SUFFICIENT FOR MAINTAINING THE PH OF THE SOLUTION AT APPROXIMATELY 10 ELIMINATING ALL AMMONIA FROM SAID SOLUTION, AND MIXING THE ALKALINE SOLUTION OF CALCIUM GLUCOHEPTONATE OBTAINED WITH A WEAK SOLUTION OF OXALIC ACID SUFFICIENT FOR MAINTAINING THE PH OF THE SOLUTION A APPROXIMATELY 3.5 TO 4.5 FORMING GLUCOHEPTONIC ACID WITH A. 60 TO 70% CONTENT OF PURE AND COLORLESS CALCIUM GLUCHEPTONATE.
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) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |