US2871235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for obtaining polysaccharide material from plants of the genus cecropia
Assignee: Individual
•
Filing: 1953-08-12
•
Granted: 1959-01-27
•
Expires: 1973-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jilovice Vladimir Jan Hlous De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:05
CPC Classifications
C; C08; C08B; C08B37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE PROCESS OF OBTAINING A POLYSACCHARIDE MATERIAL FROM PARTS OF PLANTS OF THE GENUS CECROPIA, WHICH COMPRISES EXTRACTING THE SAME AFTER IT HAS BEEN PROTECTED AGAINST THE NOXIOUS ACTION OF ENZYMES AND OXYDASES BY DIFFUSION AT AN ELEVATED TEMPERATURE NOT EXCEEDING 100* C. IN A MEDIUM CONSISTING OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND A WEAKLY ACIDIC AQUEOUS SOLUTION, FILTERING THE EXTRACT, PRECIPITATING THE SACCHARIDE MATERIAL FROM THE FILTRATE BY THE ADDITION OF CONCENTRATED ETHYL ALCOHOL AND FINALLY DRYING THE POLYSACCHARIDE PRECIPITATE.
Claim 2
Dependent Claim
86 words
THE PROCESS OF OBTAINING A POLYSACCHARIDE MATERIAL FROM PARTS OF PLANTS OF THE GENUS CECROPIA, WHICH COMPRISES EXTRACTING THE SAME AFTER IT HAS BEEN PROTECTED AGAINST THE NOXIOUS ACTION OF ENZYMES AND OXYDASES BY DIFFUSION AT AN ELEVATED TEMPERATURE NOT EXCEEDING 100* C. IN A MEDIUM CONSISTING OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND A WEAKLY ACIDIC AQUEOUS SOLUTION, FILTERING THE EXTRACT, PRECIPITATING THE SACCHARIDE MATERIAL FROM THE FILTRATE BY THE ADDITION OF CONCENTRATED ETHYL ALCOHOL AND FINALLY DRYING THE POLYSACCHARIDE PRECIPITATE.
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) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |