US2548895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of citrus peel
Assignee: Individual
•
Filing: 1947-11-25
•
Granted: 1951-04-17
•
Expires: 1967-11-25
Abstract
No abstract record available.
Inventors
- 👤 Robert P Graham
- 👤 Allan D Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:48
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0045; C08B37/0048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A COUNTER-CURRENT PROCESS FOR OBTAINING AN EXTRACT HAVING A PECTIN CONCENTRATION OF HIGHER THAN ABOUT 0.3 PERCENT AND HAVING A RELATIVELY HIGH FILTRATION RATE, COMPRISING SLOWLY PASSING CITRUS PEEL, DRIED TO AT LEAST ABOUT 90% SOLIDS AND IN THE FORM OF STRIPS FROM ABOUT 1/16 INCH TO ABOUT 1/4 INCH IN WIDTH, THROUGH AN ELONGATED PATH IN A BODY OF DILUTE AQUEOUS MINERAL ACID WITH A MINIMUM OF DISINTEGRATION OF THE PEEL, THE PEEL AND THE AQUEOUS ACID MOVING IN OPPOSITE DIRECTIONS, AND REMOVING THE EXTRACT TOWARD ONE END OF THE BODY AND THE PEEL TOWARD THE OTHER.
Claim 2
Dependent Claim
98 words
A COUNTER-CURRENT PROCESS FOR OBTAINING AN EXTRACT HAVING A PECTIN CONCENTRATION OF HIGHER THAN ABOUT 0.3 PERCENT AND HAVING A RELATIVELY HIGH FILTRATION RATE, COMPRISING SLOWLY PASSING CITRUS PEEL, DRIED TO AT LEAST ABOUT 90% SOLIDS AND IN THE FORM OF STRIPS FROM ABOUT 1/16 INCH TO ABOUT 1/4 INCH IN WIDTH, THROUGH AN ELONGATED PATH IN A BODY OF DILUTE AQUEOUS MINERAL ACID WITH A MINIMUM OF DISINTEGRATION OF THE PEEL, THE PEEL AND THE AQUEOUS ACID MOVING IN OPPOSITE DIRECTIONS, AND REMOVING THE EXTRACT TOWARD ONE END OF THE BODY AND THE PEEL TOWARD THE OTHER.
References Cited (Backward Citations)
US608363A
Cited
US1385525A
Cited
US1497884A
Cited
US2107537A
Cited
US2387165A
Cited
US2455382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |