US2496306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isolation of low-methoxyl pectins
Assignee: Individual
•
Filing: 1946-08-09
•
Granted: 1950-02-07
•
Expires: 1966-08-09
Abstract
No abstract record available.
Inventors
- 👤 Harry S Owens
- 👤 Rolland M Mccready
- 👤 William D Maclay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:31
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS FOR ISOLATING A LOW-METHOXYL PECTIN FROM AN AQUEOUS SOLUTION THEREOF WHICH COMPRISES DISSOLVING AN ALKALI METAL SALT IN AN AQUEOUS SOLUTION OF A LOW-METHOXYL PECTIN AT A PH FROM 3 TO 5, THE CONCENTRATION OF SAID METAL SALT BEING FROM ABOUT 2% TO ABOUT 10%, AND SEPARATING THE PRECIPITATED LOW-METHOXYL PECTIN FROM THE SOLUTION.
Claim 2
Dependent Claim
56 words
A PROCESS FOR ISOLATING A LOW-METHOXYL PECTIN FROM AN AQUEOUS SOLUTION THEREOF WHICH COMPRISES DISSOLVING AN ALKALI METAL SALT IN AN AQUEOUS SOLUTION OF A LOW-METHOXYL PECTIN AT A PH FROM 3 TO 5, THE CONCENTRATION OF SAID METAL SALT BEING FROM ABOUT 2% TO ABOUT 10%, AND SEPARATING THE PRECIPITATED LOW-METHOXYL PECTIN FROM THE SOLUTION.
References Cited (Backward Citations)
US2132065A
Cited
US1513615A
Cited
US1497884A
Cited
US1634879A
Cited
US2008999A
Cited
US1991242A
Cited
US2132577A
Cited
US2380739A
Cited
US2358430A
Cited
US2392854A
Cited
US2406840A
Cited
US2386323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |