US3067192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing acyl polysac-charide borates
Assignee: Standard Oil Co
•
Filing: 1958-06-11
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Granted: 1962-12-04
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Expires: 1978-06-11
Abstract
No abstract record available.
Inventors
- 👤 Donald D Emrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
C; C07; C07H; C07H23/00; C08; C08B; C08B37/00; C10; C10M; C10M1/00; C10M1/08; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A PROCESS FOR PREPARING OIL-DISPERSIBLE ACYL POLYSACCHARIDE BORATES WHICH COMPRISES REACTING A POLYSACCHARIDE HAVING TWO ADJACENT CIS-HYDROXYL GROUPS PER SACCHARIDE UNIT WITH AN ALIPHATIC ACYL CHLORIDE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
30 words
A PROCESS FOR PREPARING OIL-DISPERSIBLE ACYL POLYSACCHARIDE BORATES WHICH COMPRISES REACTING A POLYSACCHARIDE HAVING TWO ADJACENT CIS-HYDROXYL GROUPS PER SACCHARIDE UNIT WITH AN ALIPHATIC ACYL CHLORIDE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
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US2589226A
Cited
US2795547A
Cited
US2795548A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |