US2626935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic fractional ester of a polycarboxylic acid with oxypropylated glucose
Assignee: Baker Petrolite LLC
•
Filing: 1951-05-14
•
Granted: 1953-01-27
•
Expires: 1971-05-14
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:32
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN ACIDIC FRACTIONAL ESTER OF (A) A POLYCARBOXY ACID WITH (B) OXYPROPYLATED GLUCOSE, WITH THE PROVISO THAT (A) THE OXYPROPYLATED GLUCOSE BE WITHIN THE MOLECULAR WEIGHT RANGE OF 1500 TO 15,000 ON AN AVERAGE STATISTICAL BASIS; (B) THE GLUCOSE REPRESENT NOT MORE THAN 12% BY WEIGHT OF THE OXYPROPYLATED GLUCOSE ON A TATISTICAL BASIS; AND THAT (C) THE PRECEDING PROVISOS BE BASED ON COMPLETE REACTION INVOLVING PROPYLENE OXIDE AND THE GLUCOSE; WITH THE PROVISO THAT THE RATIO OF (A) TO (B) BE ONE MOLE OF THE POLYCARBOXY ACID FOR EACH AVAILABLE HYDROXYL RADICAL.
Claim 2
Dependent Claim
93 words
AN ACIDIC FRACTIONAL ESTER OF (A) A POLYCARBOXY ACID WITH (B) OXYPROPYLATED GLUCOSE, WITH THE PROVISO THAT (A) THE OXYPROPYLATED GLUCOSE BE WITHIN THE MOLECULAR WEIGHT RANGE OF 1500 TO 15,000 ON AN AVERAGE STATISTICAL BASIS; (B) THE GLUCOSE REPRESENT NOT MORE THAN 12% BY WEIGHT OF THE OXYPROPYLATED GLUCOSE ON A TATISTICAL BASIS; AND THAT (C) THE PRECEDING PROVISOS BE BASED ON COMPLETE REACTION INVOLVING PROPYLENE OXIDE AND THE GLUCOSE; WITH THE PROVISO THAT THE RATIO OF (A) TO (B) BE ONE MOLE OF THE POLYCARBOXY ACID FOR EACH AVAILABLE HYDROXYL RADICAL.
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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |