US2863907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylaryloxy alkanoic acid esters and their hydroaryl analogs
Assignee: Universal Oil Products Co
•
Filing: 1953-09-04
•
Granted: 1958-12-09
•
Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
- 👤 Schmerling Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:40
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C69/708; C07C69/712
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
A NUCLEARLY MONO-ALKYL-SUBSTITUTED ARYLOXYALKANOIC ACID ESTER OF A POLY-(OXYETHYLENE) GLYCOL, IN WHICH THE ALKYL GROUP CONTAINS FROM 4 TO ABOUT 18 CARBON ATOMS, THE ARYL RADICAL IS SELECTED FROM THE GROUP CONSISTING OF PHENYL AND NAPHTHYL, AND THE NUMBER OF OXYETHYLENE UNITS PER MOLECULE IS FROM ABOUT 10 TO ABOUT 50.
Claim 2
Dependent Claim
51 words
A NUCLEARLY MONO-ALKYL-SUBSTITUTED ARYLOXYALKANOIC ACID ESTER OF A POLY-(OXYETHYLENE) GLYCOL, IN WHICH THE ALKYL GROUP CONTAINS FROM 4 TO ABOUT 18 CARBON ATOMS, THE ARYL RADICAL IS SELECTED FROM THE GROUP CONSISTING OF PHENYL AND NAPHTHYL, AND THE NUMBER OF OXYETHYLENE UNITS PER MOLECULE IS FROM ABOUT 10 TO ABOUT 50.
Claim 3
Dependent Claim
6 words
AN ESTER HAVING THE EMPIRICAL FORMULA:
Claim 4
Dependent Claim
6 words
AN ESTER HAVING THE EMPIRICAL FORMULA:
References Cited (Backward Citations)
US1974810A
Cited
US2179209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |