Patent US3337526A successfully refreshed from Google Patents.
US3337526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing arabinogalactan
Assignee: ST Regis Paper Co
•
Filing: 1965-10-15
•
Granted: 1967-08-22
•
Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Mark F Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:47
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR PRODUCING AN ARABINOGALACTAN SOLUTION WHICH COMPRISES EXTRACTING FINELY DIVIDED LARCH WOOD WITH AN AQUEOUS LIQUID SOLVENT SUBSTANTIALLY FREE OF HYDROLYZING AGENTS FOR SAID ARABINOGALACTAN UNDER THE EXTRACTION CONDITIONS AT A TEMPERATURE OF FROM JUST ABOVE THE FREEZING POINT OF SAID SOLVENT TO ABOUT 160*F.
Claim 2
Dependent Claim
47 words
A PROCESS FOR PRODUCING AN ARABINOGALACTAN SOLUTION WHICH COMPRISES EXTRACTING FINELY DIVIDED LARCH WOOD WITH AN AQUEOUS LIQUID SOLVENT SUBSTANTIALLY FREE OF HYDROLYZING AGENTS FOR SAID ARABINOGALACTAN UNDER THE EXTRACTION CONDITIONS AT A TEMPERATURE OF FROM JUST ABOVE THE FREEZING POINT OF SAID SOLVENT TO ABOUT 160*F.
References Cited (Backward Citations)
US2073616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |