US2965658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxypropylene derivatives of hydroxy acid compounds
Assignee: Visco Products Co
•
Filing: 1958-07-02
•
Granted: 1960-12-20
•
Expires: 1978-07-02
Abstract
No abstract record available.
Inventors
- 👤 Willard H Kirkpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:05
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04; C07; C07C; C07C309/00; C07C309/01; C07C309/63; C07C311/00; C07C51/00; C07C51/347; C07C51/367; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
AN OXYPROPYLATED ORGANIC COMPOUND FROM THE GROUP CONSISTING OF OXYPROPYLATED HYDROXY CARBOXYLIC ACIDS, OXYPROPYLATED HYDROXY CARBOXYLIC ACID ESTERS, OXYPROPYLATED HYDROXY CARBOXYLIC ACID AMIDES, OXYPROPYLATED HYDROXY CARBOXYLATES, OXYPROPYLATED HYDROXY CARBOXYLIC ACID AMINE SALTS, OXYPROPYLATED HYDROXY SULFONIC ACIDS, OXYPROPYLATED HYDROXY SULFONIC ACID ESTERS, OXYPROPYLATED HYDROXY SULFONIC ACID AMIDES, AND OXYPROPYLATED HYDROXY SULFONATES WHEREIN THE ACID RADICAL HAS 1 TO 2 HYDROXY GROUPS, WITH THE FURTHER PROVISOS THAT THE HYDROXY CARBOXYLIC ACID AMIDES, HYDROXY CARBOXYLATES, HYDROXY CARBOXYLIC ACID AMIDES, HYDROXY CARBOXYLATES, AND HYDROXY CARBOXYLIC ACID AMINE SALTS ARE HYDROCARBONS SUBSTITUTED WITH HYDROXY AND CARBOXY RADICALS AND 0-1 AMINO GROUPS, THE HYDROXY SULFONIC ACIDS, HYDROXY SULFONIC ACID AMIDES AND HYDROXY SULFONATES ARE HYDROCARBONS SUBSTITUTED WITH HYDROXY AND SULFONIC ACID RADICALS, AND NO CARBON CHAIN IN SAID OXYPROPYLATED ORGANIC COMPOUND EXCEEDS 30 CARBONS AT LEAST ONE OF THE HYDROXY GROUPS BEING OXYPROPYLATED WITH A POLYOXYPROPYLENE RADICAL SUFFICIENTLY LARGE THAT THE MOLECULAR WEIGHT OF THE COMPOUND ATTRIBUTABLE TO THE POLYOXYPROPYLENE RADICAL IS AT LEAST 2000, AND AT LEAST 75% OF THE AVERAGE MOLECULAR WEIGHT OF THE EFFECTIVE ORGANIC COMPOUND IS ATTRIBUTABLE TO THE POLYOXYPROPYLENE GROUPS.
Claim 2
Dependent Claim
179 words
AN OXYPROPYLATED ORGANIC COMPOUND FROM THE GROUP CONSISTING OF OXYPROPYLATED HYDROXY CARBOXYLIC ACIDS, OXYPROPYLATED HYDROXY CARBOXYLIC ACID ESTERS, OXYPROPYLATED HYDROXY CARBOXYLIC ACID AMIDES, OXYPROPYLATED HYDROXY CARBOXYLATES, OXYPROPYLATED HYDROXY CARBOXYLIC ACID AMINE SALTS, OXYPROPYLATED HYDROXY SULFONIC ACIDS, OXYPROPYLATED HYDROXY SULFONIC ACID ESTERS, OXYPROPYLATED HYDROXY SULFONIC ACID AMIDES, AND OXYPROPYLATED HYDROXY SULFONATES WHEREIN THE ACID RADICAL HAS 1 TO 2 HYDROXY GROUPS, WITH THE FURTHER PROVISOS THAT THE HYDROXY CARBOXYLIC ACID AMIDES, HYDROXY CARBOXYLATES, HYDROXY CARBOXYLIC ACID AMIDES, HYDROXY CARBOXYLATES, AND HYDROXY CARBOXYLIC ACID AMINE SALTS ARE HYDROCARBONS SUBSTITUTED WITH HYDROXY AND CARBOXY RADICALS AND 0-1 AMINO GROUPS, THE HYDROXY SULFONIC ACIDS, HYDROXY SULFONIC ACID AMIDES AND HYDROXY SULFONATES ARE HYDROCARBONS SUBSTITUTED WITH HYDROXY AND SULFONIC ACID RADICALS, AND NO CARBON CHAIN IN SAID OXYPROPYLATED ORGANIC COMPOUND EXCEEDS 30 CARBONS AT LEAST ONE OF THE HYDROXY GROUPS BEING OXYPROPYLATED WITH A POLYOXYPROPYLENE RADICAL SUFFICIENTLY LARGE THAT THE MOLECULAR WEIGHT OF THE COMPOUND ATTRIBUTABLE TO THE POLYOXYPROPYLENE RADICAL IS AT LEAST 2000, AND AT LEAST 75% OF THE AVERAGE MOLECULAR WEIGHT OF THE EFFECTIVE ORGANIC COMPOUND IS ATTRIBUTABLE TO THE POLYOXYPROPYLENE GROUPS.
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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |