US3006935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New polyglycol ether derivatives
Assignee: BASF Schweiz AG
•
Filing: 1956-07-09
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Granted: 1961-10-31
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Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:40
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/13; D06P5/138; C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2618; C08G65/2621; C08G65/2624; D06M; D06M13/00; D06M13/322; D06M13/372; D06M13/402; D06M13/405; D06M7/00; D06P1/00; D06P1/44; D06P1/60; D06P1/607; D06P1/6073; D06P1/6076; D06M2200/00; D06M2200/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AS A LEVELING AGENT FOR DYEING WITH A COMPLEX METAL DYESTUFF, IN WHICH DYESTUFF ONE ATOM OF METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM AND COBALT IS BOUND IN COMPLEX UNION WITH TWO MOLECULES OF AN AXODYESTUFF AND WHICH COMPLEX METAL DYESTUFF CONTAINS AT MOST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF CARBOXY GROUP AND SULFO GROUP, A POLYGLYCOLETHER DERIVATIVE WHICH CONTAINS 40 TO 100 -CH2CH2O- GROUPS AND IN ITS FREE BASE STATE CORRESPONDS TO THE FORMULA
Claim 2
Dependent Claim
79 words
AS A LEVELING AGENT FOR DYEING WITH A COMPLEX METAL DYESTUFF, IN WHICH DYESTUFF ONE ATOM OF METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM AND COBALT IS BOUND IN COMPLEX UNION WITH TWO MOLECULES OF AN AXODYESTUFF AND WHICH COMPLEX METAL DYESTUFF CONTAINS AT MOST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF CARBOXY GROUP AND SULFO GROUP, A POLYGLYCOLETHER DERIVATIVE WHICH CONTAINS 40 TO 100 -CH2CH2O- GROUPS AND IN ITS FREE BASE STATE CORRESPONDS TO THE FORMULA
References Cited (Backward Citations)
US2103872A
Cited
US2214352A
Cited
US2470080A
Cited
US2590073A
Cited
US2681354A
Cited
US2638404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |