US2567060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sugar separation
Assignee: Sugar Res Foundation Inc
•
Filing: 1947-09-24
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Granted: 1951-09-04
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Expires: 1967-09-24
Abstract
No abstract record available.
Inventors
- 👤 Gonzalo C Docal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
C; C13; C13K; C13K3/00; C25; C25B; C25B3/00; C25B3/01; C25B3/07; C25B3/20; C25B3/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A METHOD OF OBTAINING SUBSTANTIALLY PURE FRUCTOSE FROM AN ELECTROLYTICALLY OXIDIZED, LIMENEUTRALIZED INVERT SUGAR LIQUOR FREE OF CALCIUM GLUCONATE WHICH COMPRISES SOLVENT-EXTRACTING A GIVEN VOLUME OF SAID LIQUOR WITH ABOUT AN EQUAL VOLUME OF ISOBUTANOL AND CRYSTALLIZING FRUCTOSE FROM THE ISOBUTANOL EXTRACT.
Claim 2
Independent Claim
42 words
A METHOD OF OBTAINING SUBSTANTIALLY PURE FRUCTOSE FROM AN ELECTROLYTICALLY OXIDIZED, LIMENEUTRALIZED INVERT SUGAR LIQUOR FREE OF CALCIUM GLUCONATE WHICH COMPRISES SOLVENT-EXTRACTING A GIVEN VOLUME OF SAID LIQUOR WITH ABOUT AN EQUAL VOLUME OF ISOBUTANOL AND CRYSTALLIZING FRUCTOSE FROM THE ISOBUTANOL EXTRACT.
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) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |