US2706207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of
Assignee: —
•
Filing: —
•
Granted: 1955-04-12
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Expires: 1972-04-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:30
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C08G65/2642; C08G65/2645; C08G65/2648
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
PROCESS FOR THE PRODUCTION OF POLYGLYCOL ETHERS WHICH COMPRISES REACTING A POLYVALENT ALCOHOL CARRYING THREE ALKYLOL GROUPS ON ONE AND THE SAME CARBON ATOM WITH MORE THAN 20 MOLS OF ETHYLENE OXIDE CALCULATED ON EACH ALCOHOL GROUP, IN THE PRESENCE OF A SODIUM ALCOHOLATE OBTAINABLE FROM THE POLYVALENT ALCOHOL APPLIED.
Claim 2
Dependent Claim
50 words
PROCESS FOR THE PRODUCTION OF POLYGLYCOL ETHERS WHICH COMPRISES REACTING A POLYVALENT ALCOHOL CARRYING THREE ALKYLOL GROUPS ON ONE AND THE SAME CARBON ATOM WITH MORE THAN 20 MOLS OF ETHYLENE OXIDE CALCULATED ON EACH ALCOHOL GROUP, IN THE PRESENCE OF A SODIUM ALCOHOLATE OBTAINABLE FROM THE POLYVALENT ALCOHOL APPLIED.
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) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |